A new lead in the hunt for escaped prisoners Richard Matt and David Sweat: Bloodhounds have picked up the scent of the two men near the Clinton Correctional Facility and discovered a possible campsite in the woods, police say. Sources tell CNN that authorities are reviewing security camera footage from a gas station a few miles from the prison. Dogs detected the men's scent at the gas station and followed it toward Cadyville, NY, where a highway was closed amid a major search operation yesterday. There's a Subway restaurant at the gas station and police say the escapees may have been looking for food in the garbage. Investigators have also found food wrappers and a possible sleeping site, according to CNN's sources.
Police say the tracking dogs are still following the scent, though the BBC reports that rainstorms have made it a lot harder for dogs to detect the prisoners' traces. Officers have been following up leads as far away Philadelphia, where they spoke to a cab driver who said he may have given the men a ride, the BBC reports. That possibility was ruled out. Joyce Mitchell, the 51-year-old prison worker accused of assisting the men, has not been arrested yet but authorities say she may face charges of accessory to escape and promoting prison contraband. The local DA tells the Plattsburgh Press Republican that an incident involving Sweat and Mitchell—whose husband also works at the prison—was reported a year ago but was handled "in-house." (Read more prison break stories.)