Near-famine conditions push boys to pick up guns while girls are sexually abused and forced into domestic work in the Carribean nation.
Outgoing President Leblanc Fils opposed the move citing unresolved corruption accusations against three other councillors who remain voting members and signed off on the transition.
Haiti is reeling after members of the Gran Grif gang stormed through the town of Pont-Sonde in the western Artibonite region early on Thursday, killing at least 70 people, including infants, and forcing over 6,000 residents to flee.
Five high-profile individuals with corruption on Wednesday, including three members of an interim governing council, over a scandal involving bribing the chairman of a state-owned bank.
Ruto acknowledged that Kenya's decision to send forces to Haiti had raised questions, but defended it as a commitment to international peace and security.
The 15-member UN Security Council is due to vote on September 30 on the mandate renewal.
Just Kenya and Jamaica have deployed forces to Haiti so far as part of the U.N.-backed anti-gang offensive, which is set to expire at the start of October if its mandate is not renewed later this month.
It has been confirmed that salaries for the Kenyan team in the mission will be reflected in their individual bank accounts this week.
Kenyan lawmakers and citizens have expressed concerns about the mission, with some activists and lawyers attempting to block the deployment in court.
The General Service Unit's Recce team has been conducting patrols in local streets and the port, focusing on combating gangs.
But even as uniformed Kenyan police disembarked from a Kenya Airways plane with weapons in hand in Haiti's capital Port-au-Prince, police back in Nairobi opened fire on anti-tax hike demonstrators trying to storm the parliament, killing some of them.
This designation makes Kenya the first country in sub-Saharan Africa to hold this status.
Almost 580,000 people in Haiti are internally displaced - around 5 per cent of the Caribbean country's entire population.
The cabinet trims the number of ministers while replacing all who served in former Prime Minister Ariel Henry's cabinet.
A group of armed men working under gang leader Jimmy "Barbeque" Cherizier ambushed a patrol from the police's anti-gang unit in the Delmas 18 neighbourhood on Sunday and set it on fire.
President Ruto stated that all necessary legal and international protocols had been adhered to.
