A pizza delivery driver was attacked Sunday while delivering pizza at a hospital but managed to deliver his pizzas before collapsing in the emergency room, authorities said.

Police said Josh Lewis was attacked when he arrived at Norton Hospital in downtown Louisville, Kentucky. According to WLKY, Lewis was walking from his car to the hospital when he was stabbed in the back. The assailant then took Lewis' Jeep Cherokee and left the scene.

Despite his injuries, Lewis delivered his pizzas in the hospital and went to the emergency room where he collapsed.

Lewis was rushed to a nearby hospital and underwent surgery for a collapsed lung.

The assailant is still at large.