MONROVIA — A 12-year-old girl struck and badly injured by a hit-and-run driver last week has been upgraded from critical to stable, police said Sunday.

The girl was crossing Huntington Avenue at Canyon Boulevard with some other children just before 4 p.m. Friday when she was struck by a 1995 Infinite J30, Monrovia police officials said. The car continued driving, and the girl was hospitalized in critical condition.

“She is responding well to the doctors,” Monrovia police Sgt. Glen Coleman said Sunday.

Emma Tapia-Gonzalez, 23, of Monrovia was tracked down by police in the hours after the crash and arrested on suspicion of hit-and-run, Lt. Nels Ortlund said. She does not have a driver’s license.

Tapia-Gonzalez was being held in lieu of $100,000 bail pending arraignment Tuesday in Pasadena Superior Court.