The UPS freighter that crashed in Louisville was a 34-year old jet. While that’s old for a passenger plane, that’s not so unusual in the world of air cargo.

At least 14 people have died following the mid-takeoff crash in Louisville on Tuesday, Nov. 4, according to the BBC. UPS confirmed in a statement obtained by PEOPLE that they have temporarily suspended operations of their MD-11 cargo planes due to the incident.

UPS and FedEx said on Friday they have grounded their combined fleet of more than 50 McDonnell Douglas MD-11 cargo planes following a crash in Louisville, Kentucky this week that killed at least 14 people.

The United Parcel Service (UPS) and FedEx announced they grounded their fleets of McDonnell Douglas MD-11 planes in the wake of a deadly crash in Kentucky.

MD-11 planes have been grounded by UPS and FedEx following the deadly crash in Kentucky this week. Here’s what to know about the planes.

UPS and FedEx grounded their MD-11 fleets "out of an abundance of caution and in the interest of safety" after a plane crash in Louisville, Kentucky, that killed 14 people.

Boeing is recommending that McDonnell-Douglas MD-11 operators ground their tri-jets while investigators work to understand more about Nov. 4’s fatal UPS MD-11 freighter accident. Boeing, which bought McDonnell-Douglas in 1997, made the recommendation late Nov. 7. “With safety as our top priority, we...