Claremont, NH – Claremont— Ten people, including five emergency responders, were transported to local hospitals overnight for carbon monoxide poisoning at a residence on Belding Street.

The cause of the carbon monoxide release is under investigation, according to a news release this morning from the Office of the State Fire Marshal.

A medical call prompted Claremont police and fire departments, as well as Golden Cross Ambulance, to respond to the home at 26 Belding Street at 11:36 Thursday night, according to the release.

“Upon their arrival the first responders discovered that the three occupants of the home were exhibiting signs of carbon monoxide poisoning and there were also highly elevated levels of carbon monoxide inside the residence,” officials said in the release. “All of the occupants of the home, as well as two friends that came by to visit them were transported to area hospitals for treatment.”

In addition to those five people, a police officer, two firefighters and two EMS providers were also transported for carbon monoxide poisoning.They are expected to recover, the release said.

In the news release, State Fire Marshal J. William Degnan reminded residents about the “importance of having working carbon monoxide alarms in your homes” and knowing the signs of carbon monoxide poisoning.

“Carbon monoxide is a colorless, odorless, tasteless gas that is known as the silent killer,” the release said. “Signs and symptoms of carbon monoxide poisoning may include; dull headache, weakness, dizziness, nausea or vomiting, shortness of breath, confusion, blurred vision or loss of consciousness.”

Anyone who experiences any of those symptoms should immediately get out into fresh air and call 911.