At least 28 people were killed when an airliner went off the runway and slammed into a wall at South Korea’s Muan International Airport on Sunday, Yonhap news agency reported.

The accident occurred as Jeju Air flight 7C2216, carrying 175 passengers and six crew on a flight from the Thai capital Bangkok, was landing at the airport in the south of the country, the report said.

Two people were found alive and rescue operations were still under way, a Muan fire official said. The official could not confirm the reports of 28 dead.

Authorities were working to rescue people in the tail section, an airport official told Reuters.