The disappearance marks the third major incident in U.S. aviation in eight days. A commercial jetliner and an Army helicopter collided near the nation’s capital on Jan. 29, killing 67 people. A medical transportation plane crashed in Philadelphia on Jan. 31, killing the six people onboard and another person on the ground.

The Bering Air plane was reported missing on its way from Unalakleet to Nome, remote communities south of the Arctic Circle.

Crews in Alaska are searching for a plane that went missing with 10 people on board while over Norton Sound off Nome.