By Allison Lampert (Reuters) -As a bell sounded in the cockpit, three UPS pilots tried to control a cargo flight that crashed this week in Louisville, Kentucky, killing at least 13 people, the National Transportation Safety Board said on Friday.

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

UPS and FedEx have 'suspended flight operations' for their MD-11 planes, the aircraft manufacturer Boeing confirmed in a statement to PEOPLE. The decision comes after at least 14 people were killed in a UPS plane crash on Tuesday,

The UPS plane whose engine exploded in Kentucky had flown out of Baltimore Marshall Airport less than 12 hours earlier.

Investigators are reviewing 63 hours of data collected from the black box of a UPS cargo plane involved in a deadly crash that killed at least 13 people in Louisville, Kentucky, earlier this week. Nine people remain missing as authorities sift through the wreckage of Tuesday's crash in an attempt to piece together what went wrong.

A UPS cargo jet can be seen descending rapidly, hitting several power lines, before crashing on the ground and bursting into flames.

A UPS cargo plane crashed at a Louisville, Kentucky, airport where the company operates its largest package delivery hub. UPS calls the giant center Worldport.

LOUISVILLE, Ky. (WDRB) — The community came together Friday night for another vigil honoring the lives lost in the crash of UPS Flight 2976 in Louisville. People gathered on the Great Lawn at Waterfront Park. Some said they wanted to come together to lift each other up after a tough week for the city.