DANNEMORA, N.Y. — State police moved their manhunt for two convicted murderers to an area west of the New York prison from which they boldly escaped more than two weeks ago, as officers began probing the latest sighting.

Investigators and military trucks converged on Mountain View, a hamlet in Franklin County, late Sunday. Just hours before hundreds had searched two towns more than 350 miles away, following an unconfirmed but credible report of another sighting.

Acting Franklin County District Attorney Glenn MacNeill told WPTZ-TV Sunday that a person had been seen fleeing from a hunting camp in the area. Much of the county is within the Adirondack Park.

Inmates David Sweat and Richard Matt broke out of maximum-security Clinton Correctional Facility on June 6 and up to 800 law enforcement officers have gone door to door checking houses, wooded areas, campgrounds and summer homes.

Vermont State Police joined the search Sunday but it wasn’t immediately known where they were sent.

Officials vowed to search “under every rock” and “behind every tree” on Sunday as law enforcement officers combed through a rural, mountainous area near the Pennsylvania border dotted with sheds, trailers, summer homes and other potential hideouts.

About 300 officers searched the towns of Amity and Friendship, where two men who resembled Sweat and Matt were spotted the day before near a railroad line that runs along a county road.

Though state police said the sightings were unconfirmed, the intense hunt was shifted across the state from the prison near the Canadian border.

Officers concentrated in the area along County Route 20 and Interstate 86. They walked railroad tracks, checked car trunks and deployed search dogs as a helicopter flew back and forth overhead. At one point, state police outfitted in camouflage could be seen heading into some woods.