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Police work the scene of a possible stabbing incident at Blair high school, on November 08 in Silver Spring, MD.
Source: The Washington Post / Getty

Authorities in Delaware County are working to identify the individual responsible for the fatal shooting of a 16-year-old boy.

According to Upper Darby Police, surveillance video and photos of the suspect have been released. Investigators say the incident stemmed from an argument between the victim and another teen, during which one of them pulled out a weapon and shot the 16-year-old in the back.

The shooting occurred just before 3 p.m. on Sunday near the intersection of Long Lane and Pine Street.