More than 100 Kenyan police arrived in Haiti's capital on Thursday to reinforce a security mission whose future has been in limbo, after the U.S. froze some funding before passing a waiver to unlock a separate batch of funds.

A fourth contingent of Kenyan police have arrived in Haiti to help repel violent gangs as officials brushed off concerns of a halt in some U.S. funding to the U.N.

More than 600 Kenyan officers had already been stationed in Haiti as part of a multinational force of police officers and soldiers from other countries — including Jamaica, Guatemala and El Salvador — who assist Haiti’s police in fighting the violent gangs in control of much of the capital, Port-au-Prince.