A 13-year-old girl who was struck Tuesday by a car while riding her bicycle within a crosswalk in Anchorage is improving.

A Providence Alaska Medical Center spokeswoman said Friday that the girl is in serious condition, upgraded from critical. The girl was hit Tuesday evening on Northern Lights Boulevard in East Anchorage.

Police say Mary Robicheaux was struck when the driver of the car failed to stop for flashing red lights that marked the crosswalk.

Police have identified the driver as 21-year-old Jordan Tuttle. They say Tuttle slammed on his brakes but it was too late.

Police have released little information about the accident investigation. Police spokeswoman Marlene Lammers said Friday police are awaiting blood test results to see if the driver was impaired.

She said no charges have been filed.