Investigators say a repeating bell sounded as pilots tried to control a UPS cargo plane upon takeoff before it crashed in Louisville, Kentucky, this week.

After the UPS plane crash that killed at least 13 people, NTSB released drone video footage of the crash site. See the full impact to businesses.

Dozens of federal aviation investigators are on the ground in Louisville searching the crash site's debris field, which covers nearly a half-mile area.

Former colleagues are mourning three pilots killed in the UPS cargo plane crash near the Louisville, Kentucky, airport, as relatives of a badly burned man who was pulled from the wreckage confirm he’s also among the 13 who died.

The power had just gone off and the ground was shaking at Grade A Auto Parts when the owner received a panicked video call from his chief financial officer. On his screen, CEO Sean Garber watched a “huge fireball” engulf the Louisville,

The UPS cargo plane crew tried to control the aircraft for about 25 seconds before it crashed into a ball of flames shortly after taking off from Louisville Muhammad Ali International Airport in Kentucky on Tuesday, killing the three pilots on board and at least 10 people on the ground, officials said Friday based on preliminary information.