At least 14 people died and 26 were missing after a boat sank near the Brazilian city of Belem, capital of northern Para state, official sources reported.
The boat was traveling between Camara, on the island of Marajo, and Belem when it sank on Thursday near Saudade Beach on the island of Cotijuba.
The cause of the accident has yet to be determined.
According to the Public Security Secretariat (Segup), the vessel was not authorized to carry passengers and had headed out to sea from a clandestine port.
Firefighters launched a search and rescue operation with the help of divers, nine boats and a helicopter to retrieve the bodies and locate the missing victims.