“There is a security incident on the Benjamin Franklin Parkway,” emergency services said, referring to the shooting.
Both officers were in stable condition, CBS3 Philadelphia told CBS3, citing the police department. The police were looking for the shooter.
A video quoted by local media showed people running away from the Benjamin Franklin Parkway.
The police asked people in the surrounding buildings to shelter in place.
“I didn’t hear the gunshots, but the police were saying ‘Run, run, run’,” one woman told an NBC affiliate.
Earlier in the day in the Chicago suburb of Highland Park, a rooftop gunman opened fire on flag-waving families and children riding bicycles during a 4th of July parade, killing six and more than 36 injured.