The commuter flight that crashed and killed 10 people on Alaska sea ice last week was part of the workhorse network of short-hop flights that people rely on daily.

Authorities are focusing on the wreckage of a plane that crashed off western Alaska as they try to determine what caused the small commuter aircraft to go down in the icy Bering Sea, killing 10 people.

Authorities say the remains of all 10 people killed when their small plane crashed into ice on the Bering Sea have been recovered.