DANNEMORA, N.Y. (AP) — Federal and New York State authorities are on the hunt near the Canadian border for two escaped prisoners from the Clinton Correctional Facility in Dannemora, a maximum security facility.

Another part of the investigation is focused on how the pair got their hands on the power tools they used to cut through steam pipes and escape through a manhole. Authorities say both inmates are convicted murderers and dangerous.

New York Gov. Andrew Cuomo says 48-year-old Richard Matt and 34-year-old David Sweat are "dangerous individuals" who escaped through an elaborate plot.

Authorities say Matt and Sweat were discovered missing from the prison Saturday morning.

Sweat is serving a sentence of life without parole in the slaying of a Broome County sheriff's deputy in 2002. Matt is serving 25 years to life for the beating death of a man in 1997.