Authorities said today that they don't know what caused the boat to capsize, though they investigating if it was loaded beyond its 40-person limit.
State authorities say the search is continuing for the missing, who were part of a group travelling in Amapa state to take part in a festival commemorating Our Lady of Nazare.
The boat was among more than three dozen in a procession heading toward the state capital so that Catholic faithful could take part in the festival.