Three people were found dead in a home in Butler County from possible carbon monoxide poisoning, sources said. First responders were called to a home on College Street in Butler at around 5 p.m. on Tuesday.

Lisa Kudrow revealed during an interview on “The Drew Barrymore Show” (via People) that she recently discovered a note the late Matthew Perry left for her inside the “Friends” cookie jar, which he gifted her after they wrapped filming the series finale in January 2004. Kudrow wouldn’t reveal what the letter said but mused: “Timing …

Five school employees were transported to hospitals with symptoms consistent with mild to moderate exposure to carbon monoxide.

Called “the silent killer”, carbon monoxide can be extremely dangerous and completely unrecognizable at first. Upstate Medical’s director of poison control, Vincent Calleo, gave out some helpful tips on how to stay safe.

Winter storms bring freezing temperatures and power outages — conditions that can significantly increase the risk of carbon monoxide poisoning.