It has been eight days since Kenscoff was attacked, says Mayor Jean Massillon, who says that it is the organization Viv Ansanm that is launching the attack.
Among the dead are many civilians, including children.
Kenscoff is located in the mountains south of Port-au-Prince and is home to many who belong to the upper echelons of Haitian society: business leaders and politicians. Viv Ansanm is an alliance where Haiti's powerful armed gangs have joined forces.
As we speak, they have surrounded the area, says Jean Massillon, who is appealing for reinforcements to the heavily strained police.
The mayor describes it as gang members going from house to house, shooting people indiscriminately. The UN's migration agency IOM warned on Monday that more than 1,600 people in Kenscoff have been forced to flee.
The gangs in crisis-ridden Haiti are heavily armed and have long since asserted their dominance over the weakened authorities. They are estimated to control at least 85 percent of Port-au-Prince.
A few days before the escalation in Kenscoff, the government and police warned that the gangs were planning new attacks, but it was unclear where these would take place.