Crews in Nome, Alaska, are conducting search-and-rescue operations after a Bering Air caravan with 10 people aboard went missing, according to local authorities.

       Bering Air Flight 445, a Cessna 208B, disappeared while flying from Unalakleet Airport to Nome Airport around 3:20 p.m. local time Thursday, the Federal Aviation Administration said.

       "The aircraft was 12 miles offshore transiting from Unalakleet to Nome when its position was lost," the U.S. Coast Guard Alaska maritime region said.

       There were nine passengers and a pilot on board.

       The Nome Volunteer Fire Department said in a Facebook post it was conducting an active ground search but that, due to weather and visibility, its crews were unable to search by air.

       A National Guard C-130 reported it found nothing found so far. The Air Force also sent a C-130 to resume the search and also reported no visuals, and have one hour of flight search time remaining, according to an update early Friday morning.

       The National Transportation Safety Board is aware of the reports and is monitoring situation, ABC News has learned.

       ABC News' Marilyn Heck contributed to this report.