PORT-AU-PRINCE, haiti — The U.N. Humanitarian Air Service will restart flights within Haiti on Wednesday, according to a statement from the U.N. World Food Program, which manages the service. The U.N. paused flights to Haiti’s capital last Tuesday, a day after gangs struck three commercial planes with gunfire, prompting the U.S. aviation regulator to ban U.S. airlines from flying to the conflict-ravaged Caribbean nation for 30 days. “UNHAS provides passenger and light cargo transport in Haiti for the entire humanitarian community, including local and international NGOs,” WFP said in a statement, adding that the suspension had not affected food supplies.