Two convicted murderers escaped Saturday from a maximum-security prison near the Canadian border in upstate New York.

Authorities say 48-year-old Richard Matt and 34-year-old David Sweat escaped from the Clinton Correctional Facility in Dannemora.

Sweat is serving a sentence of life without parole. He was convicted of first-degree murder for killing a Broome County sheriff's deputy in 2002.

Matt is serving a sentence of 25 years to life. He was convicted of murder, kidnapping and robbery after he kidnapped a man and beat him to death in 1997.

A New York State Police commander says the two men were missing Saturday morning. The prison is about 20 miles from the Canadian border.

WIRY-AM reports roadblocks were set up in the area.