SAO PAULO (AP) - Authorities say heavy rains have caused a dam to rupture in northeastern Brazil, stranding nearly 3,000 people in a region where floods have killed 53 people and displaced more than 415,000.
Officials say they launched an overnight rescue operation using five helicopters to aid nearly 600 families stranded by Wednesday's dam break in Piaui state.
Piaui civil defense department spokeswoman Vanize Lemos said Thursday that 150 families have been rescued. She says some residents climbed trees and rooftops after a river rose 16 feet (5
Heavy rains have battered northern and northeastern Brazil since April, causing floods and mudslides in a region extending from the Amazon rain forest to the Atlantic Ocean.