BROOKLYN, N.Y. ( WPIX) – An EMS lieutenant for the New York City Fire Department died on Monday after first responders marked his 911 call as “unfounded” despite never making contact with the man, who was having a medical episode, sources told Nexstar’s WPIX. FDNY has confirmed it is investigating the incident.

The FDNY is reviewing the response to a 911 emergency call made by an off-duty EMS lieutenant in cardiac arrest to see if more could have been done by the Emergency Medical Technicians who closed out the call when no one came to the door,

The EMS lieutenant called 911 during an apparent asthma attack around noon at his home on East 73rd Street in Brooklyn, sources said.