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

Airlines stopped flying MD-11s mainly because the aircraft initially failed to meet its promised performance, particularly in range and fuel efficiency, which led to many airlines canceling orders or replacing them with more efficient planes such as the Boeing 777 and Airbus A330, according to the Infinite Flight blog.

The death toll from the UPS plane crash in Louisville has risen to 12, and one of the victims may have been is a child.

UPS said on Wednesday it would reopen its sprawling air cargo hub in Louisville, Kentucky, after temporarily shuttering it a day earlier due to a deadly plane crash, a move that will begin easing delays in the delivery firm's global network.

Two businesses were directly affected by the UPS plane crash Nov. 4: Kentucky Petroleum Recycling and Grade A Auto Parts.

The Louisville Metro Police Department said multiple agencies are responding to a reported plane crash near the Louisville Airport.

A team of investigators arrived in Louisville, Kentucky, Wednesday to look into what led to the fiery crash of a UPS cargo plane shortly after it took off from the Louisville airport Tuesday, killing at least 12 people and destroying businesses and other structures in the area.