A search is underway in rough weather for a missing Bering Air Cessna 208B Grand Caravan with 10 people on board, last seen over Alaska’s Norton Sound while en route from Unalakleet to Nome.

Poor visibility and freezing conditions have hampered air searches, with the Coast Guard, Air Force, and National Guard assisting.

The FBI is using cell phone geolocation to aid the search.

Authorities suspect icy conditions may have affected the plane’s performance, CNN has reported.

Hospitals are on standby, and officials urge the public to avoid independent search efforts due to safety concerns.

Written by B.C. Begley