A wealthy businessman on Thursday became the head of Haiti’s transitional presidential council tasked with restoring order in the troubled country as a top gang leader underscored the challenges facing the nation by vowing to overthrow the government.

Haitian gang leader Jimmy "Barbecue" Cherizier and a U.S. citizen have been indicted for allegedly conspiring to violate U.S. sanctions by raising funds for Cherizier's violent criminal enterprise.

The State Department is offering a $5 million reward for information leading to Chérizier’s arrest or conviction.