TOBYHANNA, Pa. (AP) Monroe County authorities say a helicopter has crashed in northeastern Pennsylvania, killing two people and injuring one.

Investigators believe the chopper went down around 8 p.m. Tuesday in Coolbaugh Township.

The wreckage was located in woods off Interstate 380 around 2 a.m. Wednesday.

Monroe County Coroner Bob Allen said two people onboard were confirmed dead at the scene. Allen says a fourth person, who was a backseat passenger, is injured. The extent of the injuries wasn't immediately known.

Identities of the victims have not been released.

Authorities say they don't know where the helicopter took off from, but that they will be working with the Federal Aviation Administration to investigate the crash.