Man shot during robbery in Northern Liberties section of Philadelphia

PHILADELPHIA (WPVI) -- Police are investigating a violent robbery in the Northern Liberties section of the city.

According to police, a 24-year-old man was shot in the right knee just before 2:30 a.m. Sunday near Ellen and Penn streets.

The victim told officers two men approached him as he was leaving the Roar Nightclub, stole his backpack and shot him.

He was taken to the hospital in stable condition.