Spokeswoman Megan Peters said early today by email that the pilot and three passengers were killed in the Friday night crash.
There was no immediate word on the condition of the other passengers.
National Transportation Safety Board investigator Clint Johnson said the single-engine, turboprop Cessna 208 was Era Alaska's Flight 373.
Peters said the plane was flying from Bethel to Saint Marys.
She says troopers and an air ambulance service are assisting the survivors.