Rescue workers raised the death toll from heavy rains and flooding in the Brazilian state of Bahia to 10 on Monday.
The floods have also forced about 20,000 people to flee their homes, and a state of emergency has been declared in 51 cities, according to the regional civil defense agency.
The rains began six days ago, triggered by an extratropical cyclone, and intensified over the weekend.
The downpours left several towns and rural areas completely cut off, making it difficult for relief teams to reach them.
On Sunday, more than 200 military firefighters rescued people in flooded communities with the help of two helicopters.