LOUISVILLE, Ky. (AP) — A UPS cargo plane crashed Tuesday at a Louisville, Kentucky airport where the company operates its largest package delivery hub.

UPS calls the giant center Worldport.

Here’s what to know about its enormous scale:

Processes 2 million packages per day

The facility at Muhammad Ali International Airport sprawls across the equivalent of 90 football fields.

It processes 2 million packages per day in a facility. It has the ability to handle even more: It has the capacity for 416,000 packages and documents per hour.

A time-lapse video UPS posted on YouTube shows planes taxiing to and from special cargo gates. Workers unload containers packed with cardboard boxes. Other employees load the boxes onto a conveyor belt, which delivers packages to workers who load them in

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