The Latest on prison escape: State police close road near prison, investigate lead on escapees

A heavily armored vehicle drives through a staging area during a search for two escaped prisoners near Dannemora, N.Y., Thursday, June 11, 2015. Police have blocked off the main road outside a northern New York village as authorities concentrate their sixth day of searching for David Sweat and Richard Matt, two escaped murders, on a swampy area just a couple miles from the prison the convicts broke out of last weekend. (AP Photo/Seth Wenig) (The Associated Press)

Law enforcement officers line a street near an area during a search for two escaped prisoners near Dannemora, N.Y., Thursday, June 11, 2015. Police have blocked off the main road outside a northern New York village as authorities concentrate their sixth day of searching for David Sweat and Richard Matt, two escaped murders, on a swampy area just a couple miles from the prison the convicts broke out of last weekend. (AP Photo/Seth Wenig) (The Associated Press)

7 a.m. (EDT)

A road east of Dannemora where Clinton Correctional Facility is located remains closed as police investigate a lead involving two escaped killers. New York State Police closed a stretch of Route 374 Wednesday night.

Troopers say the road is expected to remain closed through Thursday morning and residents are told to expect an increased police presence.

The 1,500-student Saranac Central School District called off classes Thursday because of all the police activity in the area just four miles east of the prison. District Superintendent Jonathan Parks says state police requested he close the schools.

The district offices are just a half mile from the prison's walls.