Queens, NY – Four people were killed in a carbon monoxide incident in Floral Park, Queens Friday, sources told CBS2.

The incident began at around 3:15 p.m. in a single family home at 260th Street near 86th Avenue, according to EMS.

The four dead are two adult men and two adult women, sources said.

An 83-year-old man was found dead in a garage, and an 80-year-old woman was found dead in the lower floor adjacent to a garage, sources said.

Another man was found dead in the upstairs living room, and another woman was found dead upstairs near a staircase, sources said. They were found dead by a family who called 911, sources said.

A Buick was found running in the garage, sources said.

A neighbor said two of the victims were a couple.

“They just celebrated their 60th anniversary last year too,” one woman who lives nearby told CBS2’s Alice Gainer. “So pleasant to talk to – they loved their garden. They always sat in their yard in the spring and summertime – just nice people.”

City Councilman Mark Weprin (D-Queens) said a firefighter was also hospitalized in the incident.

“My thoughts and prayers go out to the friends and families of the victims,” Weprin said in the statement. “It is my hope that this tragedy sheds light on the importance of having, and maintaining, a carbon monoxide detector in all homes and apartments.”

The incident not considered suspicious at this time, sources said.

A mother and her young daughter in East Orange, N.J. were accidentally killed by carbon monoxide poisoning earlier this week, the Essex County Prosecutor’s office said Friday.