A cargo ship transporting 3,000 cars was abandoned in the middle of the Pacific Ocean on Tuesday after a massive fire broke out. As of Friday, the ship was still burning. The blaze may have been fueled by the vehicles’ lithium-ion batteries, which are notoriously difficult to extinguish once ignited.

A cargo ship abandoned in the Pacific Ocean, will continue to burn out of control for at least a week, as authorities struggle to rescue the stricken vessel.