Officials are still investigating what caused a small commuter plane to crash out of the sky over Alaska last week, killing all 10 people aboard — but Joel Natwick, a longtime pilot in the state, thinks ice could be to blame.

Authorities are working to recover the wreckage of a plane crash in western Alaska that killed 10 people while investigators are trying to determine what caused the small commuter aircraft to go down in the icy Bering Sea.