PHILADELPHIA — Two police officers were shot and injured in front of the Philadelphia Art Museum while on duty at the city’s Independence Day celebrations on Monday night. The incident caused stampedes of people watching fireworks on the Benjamin Franklin Parkway to flee what they believed was an active shooting. Investigators were still seeking to determine where the shots were fired from, how many were fired, and whether the shots were intentionally fired toward police or the officers were struck by stray gunfire. Police said no one else was shot. No arrests had been made and no suspects wer…
