Lebanon, CT – The two people found dead in a running car in Lebanon on Monday were killed by carbon monoxide poisoning, according to state police.

Brittany Holland, 25, of Hebron, and Casey Senechal, 26, of Lebanon, were found in a running car at Smith Road and Route 207 just before 9 a.m. Monday, state police said.

Police said someone passing by found the car with its engine on, saw two people inside who appeared to be in distress and notified state police.

It’s not clear how long Holland and Senechal were in the car. They were pronounced dead at the scene and their deaths have been ruled accidental.

The road was closed yesterday while police investigated.