BUTLER, Pa. — There’s a large emergency response at a Butler home after three people were found dead. Channel 11 saw firefighters, police and medics at a home on College Street on Tuesday afternoon. We’ve learned that three people were found dead from possible carbon monoxide poisoning. The deaths are under investigation.

Officers said they were called to 109 College Street in Butler City for reports of a dead person. They found that person and two other people dead from suspected carbon monoxide poisoning. Two other people were taken to a hospital from the scene.

One man is dead and another hospitalized in critical condition after they were found unresponsive last week in an Almont Township pole barn, police said. An autopsy revealed carbon monoxide poisoning was the cause of the death,

Three people were found dead in a home in Butler County due to suspected carbon monoxide poisoning on Tuesday, authorities said.

Three people died and two others were injured after a possible carbon monoxide leak at a home in Butler. First responders were called to the house on College Street around 5 p.m. Monday.