Four members of the Yale School of Medicine have been released from the hospital following a hazmat situation at a building on campus, according to the university.

The four individuals fell ill Tuesday afternoon at 333 Cedar St., New Haven, and they were released from Yale-New Haven Hospital the same day, said Karen Peart, external communications director for Yale. Peart said she did not know whether the four people were staff or students.

The situation was investigated by the hospital, Yale Police, the New Haven Fire Department, the State Department of Energy and Environmental Protection - which responds to hazardous materials - and the Yale Environmental Health and Safety office.

DEEP said Wednesday it could not detect anything that would have made the people ill. The department took air samples and other materials for sampling from the building, but recommends Yale retain an industrial hygienist for further testing, spokesperson Cyndy Chanaca said.

Fox 61 reported Tuesday that officials examined a Keurig Coffee maker as a possible source of the illness.

New Haven Deputy Fire Chief Orlando Marcano told the station that at least three people reported feeling sick around 2:40 p.m. after drinking something, likely from the coffee maker, in Sterling Hall.

Attempts to reach Marcano were unsuccessful Tuesday night.

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Investigation Of Hazmat Situation At Yale School Of Medicine Finds No Cause For Illness - Hartford Courant