Officers continued to focus Saturday on rugged terrain 30 miles west of Clinton Correctional Facility as they looked for David Sweat, who escaped from the maximum-security prison June 6 with Richard Matt.
Police manned roadblocks in the neighbouring towns of Malone and Duane as a helicopter buzzed over the woods.
Matt was shot to death Friday by a border patrol team responding to a civilian complaint about a gunshot fired at a camping trailer.
Authorities say Matt was armed and failed to respond to an order to raise his hands.
