"They were all tourists who were going on a fishing trip," Amazonas governor Wilson Lima told a press conference, adding that initial information showed all the tourists were Brazilian.
It was reported that the pilot had trouble finding the runway for landing in Barcelos, a sport fishing destination.
The Manaus Aerotaxi airline, owner of the crashed Embraer EMB 110 Bandeirante, a Brazilian twin-turboprop light transport aircraft, confirmed the accident in a social media statement.
According to Barcelos mayor Edson Mendes, Civil Defense teams found 14 bodies, which included 12 passengers, the pilot, and the co-pilot.