The talks are being conducted using a New York channel through the United Nations, it has been reported.
Key players in the talks are reported to be Joseph Yun, a former US ambassador to Malaysia and now the US special representative for North Korea policy, and North Korea's senior diplomat, Choe Son Hui, who is head of the Foreign Ministry's North American office.
Previous secret talks between the countries in Norway are understood to have led to the release of American student Otto Warmbier from North Korea.
Robert Einhorn, a former State Department official and now Brookings senior fellow who was involved in the Norway talks, said: "Since that episode, I'm told that the 'New York channel' has been resurrected and there are periodic contacts.
The current back-channel talks between the two nations have been going on for several months, it was reported last week.
Mr Einhorn said the New York channel was resurrected after being interrupted about a year ago when the Obama administration imposed sanctions on North Korea for human rights violations, and also designated dictator Kim Jong Un as one of the targeted individuals.
He said: The North Koreans retaliated by cutting off the New York channel, and what that meant was no official contacts between the United States and North Korea.
Mr Einhorn was also sceptical about the prospect of the US engaging in a formal dialogue with Pyongyang to talk about denuclearisation of North Korea.
1 of 9
He said: The impression that the US has is that the North Koreans are not eager for such a dialogue.
The US has indicated that before talks can begin that the North Koreans would have to take some steps to demonstrate their sincerity."
James Carafano, vice president of foreign and defence policy studies at the Heritage Institute, said: "Back-channels are useful tools for sending messages back and forth but they won't be any kind of path forward in terms of setting up negotiations or resolving things.
Meanwhile, the North Korean regime yesterday said that South Korean President Moon Jae-in miserably failed to improve ties between the two nations during his first 100 days in office.
Rodong Sinmun, the hermit kingdoms propaganda mouthpiece, said: "In particular, he failed in inter-Korean relations.
He spoke of dialogue and an implementation of inter-Korean agreements, but in reality, he acted in the opposite direction."
Mr Moon marked his 100th day in office on Thursday.
The South Korean Presidents parents were refugees from North Korea.
- WW3: Forgotten letter reveals how JFK avoided end of the world during nuclear stand-off - Express.co.uk - April 27th, 2020
- The 9 nuclear superpowers that could spark WW3 ending the world in 60 seconds - Daily Star - April 27th, 2020
- World War 3 MAPPED: The SIX places where WW3 could break out in 2020 - Express.co.uk - April 27th, 2020
- Trade Shows: Best of Kingpins24 and Transformers ED - Sportswear International - April 27th, 2020
- 'We'll be out in WW3 if we have to' - bus drivers vow to plough on - Coventry Telegraph - April 6th, 2020
- Unusual Comparisons Isnt The Fight Against Coronavirus Exactly Like The WW3 We Dreaded? - ED Times - March 31st, 2020
- Features Helpful Tips for the elderly in Isolation ------ week two By Joe Adambery 30th March 2020 - Gibraltar Chronicle - March 31st, 2020
- Letter to the Observer: Stop panicking and preparing for WW3 - Albuquerque Journal - March 26th, 2020
- World War 3 | WW3 | WWIII | Endtime Ministries | Irvin ... - February 8th, 2020
- World War 3 panic: How Russia lost control of nuclear weapon in shocking test blunder - Express.co.uk - February 8th, 2020
- WW3 warning: 3AM White House call that saved US from total annihilation exposed - Express.co.uk - February 8th, 2020
- US military hinted at using HAARP weather machine in WW3 in 12-year-old report - Daily Star - February 8th, 2020
- EU warning: How defence restrictions were imposed on UK despite WW3 threat - Express - January 30th, 2020
- USA vs Iran: Tehran's ally list and FIRST point of attack exposed in terrifying prediction - Express.co.uk - January 30th, 2020
- WW3 news: How has the world responded to the US-Iran conflict? - Express.co.uk - January 11th, 2020
- #WW3 may be trending, but experts say its unlikely - CBC.ca - January 11th, 2020
- WW3: Is World War 3 about to happen? Will there be another war? - Express.co.uk - January 11th, 2020
- How Americans and Iranians are using memes and hashtags to cope with conflict - CNN - January 11th, 2020
- WW3: Britons in this country urged to leave immediately as FCO issue new travel warning - Express - January 11th, 2020
- WW3 news: What are the rules of military conscription? Who is exempt? - Express.co.uk - January 11th, 2020
- World War 3: Is World War 3 official? Will WW3 happen and will the UK get involved? - Express.co.uk - January 11th, 2020
- World War 3: Iran may OVER-RETALIATE in swift attack to send 'severe' warning to US - Express.co.uk - January 11th, 2020
- WW3 devastation: The terrifying moment Iran's missiles attacked US airbase released - Express.co.uk - January 11th, 2020
- World War 3 fears: Are airlines travelling to the Middle East? - Express - January 11th, 2020
- These 30 WW3 memes are the only way to get through this chaos - The Tab - January 11th, 2020
- Even as Iran & US flex muscles, here are three reasons why World War 3 isnt happening - Republic World - Republic World - January 11th, 2020
- Are we heading towards WW3? - Your Local Guardian - January 11th, 2020
- World War 3: Medical conditions that could save you from conscription if WW3 broke out - Daily Star - January 11th, 2020
- As long as WW3 does not kick off, 2020 looks set to be a better year - Retail Sector - January 11th, 2020
- Royal Navy warships heading for Iran to protect Brits as WW3 tensions skyrocket - Daily Star - January 11th, 2020
- Iran's missile cities buried beneath five layers of concrete ready to strike in WW3 - Daily Star - January 11th, 2020
- The world reacts to the threat of #ww3 on social media with memes - Briefly.co.za - January 11th, 2020
- Jokes aside, what is WW3 really about? by Sanjana Iyer, The Henrietta Barnett School - This is Local London - January 11th, 2020
- UN headquarters in Iraq evacuated over 'security threat' as WW3 fears escalate - Daily Star - January 11th, 2020
- Iraqi terrorists threaten to reduce US airbases to rubble as WW3 fears rise - Daily Star - January 11th, 2020
- Met Police on extreme alert over Iran-linked terrorism threat amid WW3 fears - Daily Star - January 11th, 2020
- WW3: President's claim US will take initiative in nuclear war escalation revealed - Express.co.uk - January 5th, 2020
- World War 3: The Top 10 WW3 video games ever made - Daily Star - January 5th, 2020
- World War Three: Safest bunkers to hide in UK if North Korea deploys nuclear weapon - Express - January 5th, 2020
- World War 3: What is the military draft age? Can people be drafted for war in the UK? - Express.co.uk - January 5th, 2020
- Brits warned 'leave Dubai and surrounding areas immediately' amid WW3 tensions - Daily Star - January 5th, 2020
- FCO warn Britons of heightened risk in Egypt as WW3 fears grow - is Sharm el-Sheikh safe? - Express - January 5th, 2020
- Rose McGowan turns out to be Republican in bizarre WW3 rant - Daily Gaming Worlld - January 5th, 2020
- World War 3: Top secret RAF mission that saved world from nuclear attack revealed - Express.co.uk - December 21st, 2019
- What is Putin up to? Secret Russian sub exercise beneath icy waters north of Scotland - Express.co.uk - November 24th, 2019
- World War III - Wikipedia - April 29th, 2019
- World War 3 | WW3 | WWIII | Endtime Ministries with Irvin Baxter - April 29th, 2019
- NEW WORLD ORDER ....WW3?!!!!!!!? | Yahoo Answers - April 29th, 2019
- Russia Already In, China to Come: Syria WW3 on the Cards ... - April 20th, 2019
- Warlike Flyboys - Ww3 - Download Free Games for PC - March 27th, 2019
- World War 3 | WW3 | WWIII | Endtime Ministries with Irvin ... - March 27th, 2019
- WW3 - Russia says Trump plotted Syria missile strike BEFORE ... - March 2nd, 2019
- Chillingly accurate 200-year-old letter predicts WW3 and ... - March 2nd, 2019
- Shattered Citadel: WW3 Sci Fi - January 6th, 2019
- World War 3: Has WW3 already begun? Why May 13 is an important date about the world's end - Express.co.uk - August 25th, 2017
- Where to find your nearest nuclear bunker in the event of WW3 - Coventry Telegraph - August 25th, 2017
- WW3: Forget North Korea - two other Asian giants are gearing up for nuclear battle - Express.co.uk - August 24th, 2017
- 'We will reach point of NO RETURN' Russia pleads for North Korea calm amid WW3 fears - Express.co.uk - August 24th, 2017
- Verge of WW3? North Korea tells USA to prepare for imminent 'uncontrollable nuclear war' - Express.co.uk - August 21st, 2017
- US and South Korea 'push North Korea closer to WW3' by carrying out tests TODAY - Express.co.uk - August 21st, 2017
- Kim's WW3 threat: Rare colour pics show brutal reality of LAST Korean War - Daily Star - August 20th, 2017
- US to stage massive drills on Kim's doorstep as WW3 fears grow - Daily Star - August 19th, 2017
- Did the Bible predict North Korea starting World War 3 with the US? - Express.co.uk - August 19th, 2017
- North Korea set to launch 'FINAL ATTACK' - WW3 fears grow as Pyongyang ESCALATES rhetoric - Express.co.uk - August 15th, 2017
- North Korea sends 'coded message to Donald Trump' as WW3 threat looms - Daily Star - August 15th, 2017
- KIM'S ARMY: WW3 looms as 3.5 MILLION 'volunteer' to fight for North Korea against USA - Express.co.uk - August 12th, 2017
- North Korea crisis: European Council expands sanctions against Pyongyang amid WW3 threat - Express.co.uk - August 11th, 2017
- Bizarre map reveals 'best place' in Lancashire to avoid WW3 nuclear missile strike - Lancashire Evening Post - August 11th, 2017
- Fmr Intel Director James Clapper warns US is waltzing into WW3 if Trump doesn't choose diplomacy over threats - Raw Story - August 11th, 2017
- BRINK OF WW3: North Korea war threats ESCALATE as Donald Trump deploys supersonic bombers - Express.co.uk - August 11th, 2017
- 'This is a BIG DEAL' Washington cranks up WW3 fears by attacking 'provocative' North Korea - Express.co.uk - August 11th, 2017
- Mystic who predicted Donald Trump's presidency claims World War 3 is about to start and says he knows the EXACT ... - The Sun - August 11th, 2017
- Nuclear war: Is THIS where the Queen and royal family will shelter if WW3 breaks out? - Express.co.uk - August 11th, 2017
- WW3: The UN Security Council Gut Punched NKorea - Live Trading News - August 6th, 2017
- US send 12 fighter jets and 200 troops to North Korea's doorstep amid WW3 fears - Daily Star - August 2nd, 2017
- North Korea FIRES submarine missile as WW3 fears reach fever pitch - Daily Star - August 1st, 2017
- Ready for WW3? Russia moves 8000 troops and 50 planes as Putin braces for North Korea war - Daily Star - August 1st, 2017
- WW3? Tensions escalate as Putin threatens Trump for sending lethal weapons to Ukraine - Express.co.uk - August 1st, 2017
- China and Russia stage war games on EU border taunting West with WW3 threats - Express.co.uk - July 29th, 2017
- WW3 tensions as Russia unites with China for terrifying war games on Europe's border - Express.co.uk - July 29th, 2017