Another 200 Kenyan police officers have left for Haiti under a United Nations-backed mission to try to control gang violence in the troubled Caribbean nation. 

The deployment comes after the East African nation sent some 400 officers to the violence-ravaged Haitian capital in June, part of an offer to send some 1,000 police to help stabilise the country.

Kenya is leading a force expected to number a total of some 2,500 personnel. 

Other countries, mostly in Africa and the Caribbean, are also contributing to the mission, which is backed but not managed by the United Nations.