RALEIGH, N.C. (AP) — Several dozen volunteers from North and South Carolina are heading home after unrest in Haiti delayed their return flights.

Sixteen dental clinic volunteers from North Carolina flew back Monday morning, while another group from South Carolina departed in the late afternoon. Unrest in Haiti had canceled their weekend flights.

Pastor Fred Stapleton of Cornerstone Covenant Church in western North Carolina said his group followed a police vehicle and a tractor pushing debris Sunday part of the way to the airport in Haiti's capital city. He told The Associated Press they slept in the crowded Port-au-Prince airport and departed Monday.

Meanwhile, 13 volunteers from Chapin United Methodist Church in South Carolina began the day with uncertainty about their travel plans but made it on a flight to Atlanta by the afternoon.