A burning firearm inside a car fired off at least one shot as it was destroyed in a vehicle fire along the Vine Street Expressway early Thursday, police said.
According to police, the incident happened at about 12:40 a.m. when a vehicle caught fire along I-676 on an off-ramp at 15th and Vine streets in Center City Philadelphia.
That vehicle, officials said, had an AR-15 rifle and a 9mm Glock handgun inside when flames erupted in the vehicle…