Fourteen more people, including nine juveniles, were arrested Friday in connection with a series of attacks in Fairfax County last Tuesday in which five people were assaulted by a group of teenagers. Three teenagers had been arrested earlier.

Police said two hours of mayhem began when a group of about 20 young people, male and female, met at a home in West Springfield, where they discussed a tiff involving one member of the group and several others the evening before. The group then apparently drove in about 10 cars to a house in the 3300 block of Beechtree Lane in Annandale, looking for the other people. Two were allowed inside by the resident, who told them she knew nothing of the altercation the night before.

"At that point, the others in the group, waiting outside the house, decided to force their way inside," taking jewelry and other small items, a police spokesman said. The group fled, damaging two cars.

The group then went to the Skyline Mall near Bailey's Crossroads, police said, where an 18-year-old Fort Washington man was attacked and his book bag stolen.

Next, a 23-year-old Prince William County man was knocked off his motorcycle by the group as he waited at a red light in the 6200 block of Little River Turnpike.

A 34-year-old Lincolnia man at a shopping center at Little River Turnpike and Beauregard Street was beaten, kicked in the head, chased and beaten again. Money was stolen from his wallet. He was treated at Alexandria Hospital for an eye injury and cuts.

Gregory M. Allen, 18, of Ashby Place in Fairfax, was charged with robbery and malicious wounding by a mob in the beating of the Lincolnia man. Allen also was charged with robbery in the assault and robbery of the Fort Washington man at the mall.

Also charged with malicious wounding in the mall incident were Robert T. Brown Jr., 18, of Englewood Place in Annandale; Jonathan W. Kane, 18, of Kingswood Drive in Dale City; Jason A. Tenburg, 18, of Lindsay Street in Fairfax; and Paul F. Worosz, 18, of King Solomon Drive in Annandale.

Timothy Gagnon, 19, of Leonard Drive in Falls Church, who police said had been involved in the argument the night before, was charged with misdemeanors in the invasion of the Annandale home.

Police said no charges had been filed against the juveniles.

Police reported no arrests in another attack Tuesday evening, which may have been unrelated. Police said two women with a baseball bat chased and struck a 34-year-old Alexandria woman in the 7400 block of Little River Turnpike. She was treated at Alexandria Hospital.