By Steve Beck, Al Novack

PHILADELPHIA (CBS) – Police are investigating the shooting death of a man in Northeast Philadelphia early Friday morning.

The shooting happened at about 5 a.m. in the 3500 block of Arthur Street in the city’s Holmesburg section.

According to investigators, a 20-year-old was shot in the back and was pronounced dead at the scene.

Authorities say the gunman fled the scene after the shooting and remains at large.

So far, no arrests have been made.

The deadly shooting remains under police investigation.