Story highlights A suspect has been arrested, the FBI says The NSA finds damage on one of its buildings, but no one was injured A blue Lincoln Town Car was spotted at the scene of several recent shootings

The agency believes the suspect is responsible for several shootings, including one on the Intercounty Connector in Maryland and one at Fort Meade, Maryland -- where the NSA is located.

U.S. Park Police reported hearing gunshots fired near the NSA headquarters on Tuesday. No one was injured, but the NSA found damage to a building near the highway that passes by its campus, a federal law enforcement official said.

The FBI has taken over the investigation.

Before the shooting near the NSA Tuesday, someone shot a landscaping truck about 10 miles away on the Intercounty Connector in Laurel. The two people in the truck were not seriously injured, Prince George's County police said.

Investigators are looking into whether three other shootings since February 24 are also linked. Those shootings happened outside a mall, a theater and a Walmart. Each took place in a different Maryland county, and no one was seriously hurt.

Surveillance video from several of the scenes show a similar blue Lincoln Town car near where the shots were fired.

Though none of the shootings were deadly, news of the investigation stirred memories of the Washington D.C.-area sniper attacks from 2002. Ten people were killed in Washington, Maryland and Virginia during the rampage that spanned three weeks.

CNN's Steve Brusk, Tiane Austin and Shimon Prokupecz contributed to this report.

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