The injuries were all non-life threatening, the source said.
The information from the source followed a tweet from a Philadelphia police spokesman who said five officers were wounded.
Just around 6 p.m. more gunfire could be heard at the scene.
Video from a news helicopter showed more than 50 police vehicles at the scene.
The video also showed police officers kneeling and crouching behind various cars with guns drawn.
Gripp, a spokesman for the department’s public affairs office, also asked media helicopters to “pull back.”
Temple University put its Health Sciences Center, about 2 miles from the standoff, on lockdown, school spokesman Ray Betzner said.
This is a developing story. Check back for updates.