Authorities said gang members allegedly used drones to drop explosives on police officers as the operation unfolded.

The death toll in a massive police raid on a notorious drug gang in Rio de Janeiro rose Wednesday to 119 killed, including four policemen, Brazilian police said.

While activists and the United Nations raised concerns over the use of force by police, Rio's state government hailed the operation as a success in its bid to halt the takeover of territory by the pow...