The UN's High Commissioner for Human Rights (OHCHR) said that as of 15 March, a total of 531 people had been killed, 300 injured and 277 kidnapped in gang-related violence, this year alone.
The information had been gathered by the Human Rights Service in the UN's Haiti office, with the incidents mainly taking place in the capital Port-au-Prince.
What did the UN say?
"Clashes between gangs are becoming more violent and more frequent, as they try to expand their territorial control throughout the capital," the OHCHR said in a statement.
During the first two weeks of March, the UN said that at least 208 people had been killed, most of whom were the victims of snipers firing indiscriminately at people in their homes or in the street.