Nine people remain missing after a UPS plane departing Louisville Muhammad Ali International Airport in Kentucky on Tuesday crashed, killing at least 12 people.

The mayor of Louisville, Kentucky, says the number of victims of a UPS cargo plane crash stands at 14 with nobody believed to be still unaccounted for among the missing.

Mayor Craig Greenberg said the number of bodies found at the crash site match the number of missing persons reports.

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 14 who died.

UPS and FedEx are temporarily grounding all of their McDonnell Douglas MD-11 cargo aircraft, following Tuesday’s plane crash in Louisville, Ky., that killed at least 14 people.

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 on Tuesday.

The cockpit voice recorder captured a persistent bell that began about 37 seconds after the crew called for takeoff thrust, and the bell continued until the recording ended, an NTSB official said.

UPS and FedEx are grounding their MD-11 fleets "out of an abundance of caution" after a deadly crash at a UPS hub in Kentucky.

But a cockpit voice recorder picked up a ringing sound during takeoff that may have signaled looming disaster in the crash that killed at least 13 in Louisville, Ky.