A 16-year-old and two 12-year-olds have been charged in connection with two assaults that took place Thursday night in Southwest Center City and Francisville - one of which left a man with a fractured jaw, police said.

At 8:34 p.m. at 18th and Lombard Streets, a group of boys stopped their bikes in front of a car driven by a couple from Fairmount who were waiting at a red light, police said.

Police said one of the boys opened the car's passenger door and another tried to pull the woman in the passenger seat out of the car.

When the driver shifted into reverse and pulled away, the boys began throwing rocks at the car, police said. The driver hit several parked vehicles while driving off, and the boys fled.

No one was injured.

About an hour later, police said, a 24-year-old Francisville man spotted the same group of boys on bicycles. Police said the boys had been hitting the side mirrors of parked cars and were being chased by another man.

When the Francisville man confronted the boys, police said, one splashed him with a bottle of water and another moved behind him and punched him in the jaw, knocking him unconscious.

The man was taken to Hahnemann University Hospital and treated for a fractured jaw and a cut on his left eyebrow.

Police eventually stopped the 16-year-old and two 12-year-olds on the 600 block of Broad Street in Spring Garden. They were positively identified as the assailants in both incidents, police said, and all three were charged with aggravated assault, simple assault, criminal conspiracy, and related offenses.