NEW YORK: Schools and a state highway shut Thursday as law enforcement chased a new lead in the manhunt for two convicted killers who cut their way out of a maximum security New York prison six days ago. The public has been warned that Richard Matt, 49, and David Sweat, 35, could kill again after using power tools to cut through walls at the Clinton Correctional Facility in Dannemora on Saturday.

New York State Police said a section of the state highway 374 east of Dannemora would stay shut Thursday morning in order to investigate a lead in the search for the two murderers.

All schools in the Saranac Central School District, which includes the village of Dannemora, were also closed. Authorities had said Matt, who murdered and dismembered his 76-year-old boss, and Sweat, who killed a sherif’s deputy, discussed heading to the neighboring state of Vermont before escaping.

“They are dangerous men. They are killers, they are murderers. There is no reason to believe they wouldn’t do it again,” New York Governor Andrew Cuomo said Wednesday.

New York State Police has offered a $100,000 reward for information leading to their arrest and warned the public to call 911 immediately if they spot any suspicious activity.

More than 450 police, corrections personnel, forest rangers, the FBI, US Marshals and border officers have been involved in the manhunt, investigating more than 500 leads.