The two boys were playing at an area playground in the 2300 block of Ithan Street when the shooting started at 7:29 p.m., say police.
The 16-year-old boy was shot in the chest and treated at the scene by a patrolman in the area. The boy died at the scene around 8 p.m.
The 13-year-old was shot in the right arm. He was transported to the Children's Hospital and is in stable condition, according to police.
A man matching the gunman's description was found at 58th Street and Woodland Avenue. Following a brief chase, he was taken into police custody. The man's identity and charges have not been made public.
There have been 192 homicides in Philadelphia in 2021, an approximate 40 percent increase from May 2020---which was the deadliest year in Philadelphia's history according to official city statistics.
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