OAKLAND -- A 15-year-old boy accused of using a gun Tuesday afternoon to rob a woman in East Oakland who was in her car with her 10-month old son has been charged with three felony counts, authorities said Friday.

After forcing the woman and child out of the 2004 Lexus, the boy drove off in the vehicle, which contained the woman's purse and was arrested within 20 minutes in North Oakland.

The boy was has been charged with armed robbery, evading police and possession of stolen property, authorities said. He is being held at Juvenile Hall pending trial.

The frightening incident began about 2:50 p.m. Tuesday in the 3900 block of Bayo Street in the Laurel district. The 31-year-old woman was in the vehicle with her 10-month old son in a car seat in the back seat.

Authorities said the suspect, an Oakland resident, walked up to the vehicle, pointed a gun at the woman and told her to get out of the car. The woman grabbed her son and got out before suspect drove off. The woman and her son were not hurt.

About 3:05 p.m. police spotted the car in the area of 57th and Gaskill streets in North Oakland. The suspect continued driving to Lowell Street and Stanford Avenue where he hit a parked vehicle before running away. Officers repeatedly told the youth to stop but when he continued to run one officer used his Taser, causing him to fall.