New Delhi, Dec. 11 -- Dozens of people in Haiti's capital have been killed following violent clashes within a powerful gang coalition, with 10 children among the victims, a local human rights group said Tuesday.

Among those killed was Dede, one of the highest ranking gang members in the Bel-Air slum of Port-au-Prince. He was beheaded, while powerful gang leader Kempes Sanon, a former police officer, was injured, according to the Committee for Peace and Development.

It wasn't immediately clear how seriously Sanon was injured, although many worry the clashes that began in recent days could unleash even more violence in a city already 90% controlled by gangs.

Sanon has been replaced while receiving treatment for his injuries by two men wh...