From the Associated Press:

PHOENIX — Helicopters and police dogs are searching for three convicted murderers who escaped from a northwest Arizona prison, kidnapped two semi-truck drivers at gunpoint and used the big rig to flee.
A Department of Corrections spokesman says the men escaped Friday evening by cutting a hole through a perimeter fence at the Arizona State Prison in Golden Valley.
Police say the truck drivers were kidnapped Saturday morning but they were later released unharmed.
The three escapees are 42-year-old Tracy Province, 36-year-old Daniel Renwick, and 45-year-old John McCluskey. They were last seen wearing orange prison jumpsuits.
Flagstaff police Sgt. James Jackson says a 44-year-old woman identified as Casslyn Mae Welch met the men and helped in their escape.