Two-year-old Robyn Rivers is in critical condition after being struck in the head by a brick that was thrown through the rear passenger window of her family's car.

According to police, it happened around 10:10 p.m. Wednesday night on the I-75 service drive and east Warren.

The child's mother and grandmother were in the car with the child. Police say an unknown black male ran out in front of the vehicle, then ran to the side.

That's when the rear window was shattered and they discovered the child had been struck by a brick.

Little Robyn was taken into surgery Thursday.

The suspect is described as a 17 to 21-year-old male with a thin build, wearing a red-hooded shirt and white pants.

Police are also investigating reports of young kids throwing rocks may be related to this case.