Dozens of U.S. citizens left Haiti on a chartered flight Sunday amid an escalating political and humanitarian crisis. The flight left from an airport in Cap-Haïtien because Haiti’s main airport in Port-au-Prince remains shut down. About 1.4 million Haitians are on the verge of famine as street violence has disrupted efforts by aid groups to distribute food. Some aid containers have also been seized by armed groups. Last week, Haiti’s unelected Prime Minister Ariel Henry agreed to resign once a seven-person transitional council was formed, but the makeup of the council has not yet been announced.