The pilot and co-pilot of UPS flight 1354 were killed early Wednesday morning. The flight was enroute from Louisville, Ky., to Birmingham, Ala. The Airbus A300 is only used by UPS and FedEx in the United States, according to CNN.
It is unclear what caused the accident, but the National Transportation Safety Board is beginning an investigation. No one on the ground was injured, Mayor William Bell told CNN.
Toni Herrera-Bast, a spokeswoman for Birmingham’s airport authority, said the plane crashed in a grassy field on the outskirts of Birmingham-Shuttlesworth International Airport.
Sharon Wilson, who lives near the airport, said the engines were making an odd sound like sputtering as the plane flew unusually low over her house.
“It sounded like an airplane had given out of fuel. We thought it was trying to make it to the airport. But a few minutes later we heard a loud ‘boom,'” she said.
The Associated Press contributed to this report.