Image source: WTXF-TV

A group of Philadelphia teens escaped a narrow brush with death when they managed to hold off a gunman firing at them through a glass door Tuesday.

Surveillance footage from a Chinese restaurant shows the teens scrambling to keep the door shut and the hooded gunman out when he appeared on the sidewalk and began firing into the restaurant, WTXF-TV reported.

Three of the teens suffered non-life-threatening gunshot wounds, Philadelphia police said. The terrifying ordeal ended after the gunman emptied his magazine and ran off. A total of 10 shots were fired.

Police released the surveillance video with the hope someone might identify the suspect: