US investigators have identified the aircraft involved in an accident at Alabama's Birmingham airport as an Airbus A300-600 operated by freight carrier UPS.
Preliminary surveillance data indicates that an aircraft from Louisville, matching this description, had been on approach to runway 18 at Birmingham at around 05:00.
"At this time, we have not confirmed the status of our pilots," says the carrier.
The A300, powered by Pratt & Whitney PW4000 engines, was registered N155UP with manufacturer serial number MSN841, says Airbus. It was delivered to UPS in 2003 and had accumulated about 11,000 flight hours in about 6,800 flights.
Airbus says it will assist in the investigations and has dispatched a team to Birmingham.