A group of masked gunmen has entered a bar in Belem city, in northern Brazil, and opened fire, killing at least 11 patrons and leaving one wounded, according to Al Jazeera.
The attackers on Sunday arrived in cars and a motorbike before shooting dead six women and five men in the bar in a poor neighbourhood in the capital of Para state, G1 news website said.
Natalia Mello, a Para state spokeswoman, confirmed only that "a massacre" had occurred but gave no details.