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.

A contingent from El Salvador arrived in Haiti on Tuesday to bolster a U.N.-backed mission led by Kenyan police to help fight gangs that killed thousands of people last year and control much of the capital.