The 2-year-old boy who was seriously injured when his father accidentally struck him with his car Monday while backing out of a parking space has been released from Maine Medical Center.

A spokeswoman for Maine Medical Center said Tuesday afternoon that Lucas Holmes was no longer a patient at the hospital, and Ron Holmes, the father of the toddler, told WMTW News that his son was released Tuesday after spending the night in the hospital for observation.

Ron Holmes told the television station that his son was lucky to be alive. He said the boy was running around his family’s apartment despite suffering several bumps and bruises.

Holmes said the hospital staff gave his son the nickname “Miracle Christmas Baby.”

Lewiston police initially characterized the boy’s injuries as life-threatening, but after being transferred from Central Maine Medical Center in Lewiston to the Portland hospital his condition was upgraded late Monday night to fair.

The accident took place around 11:40 a.m. when the boy became caught beneath his father’s car as he backed out of a space at Hillview Apartments on Rideout Avenue.

Lt. Mike McGonagle, a spokesman for the Lewiston Police Department, confirmed Tuesday that the boy’s father has a suspended driver’s license.

Reached Tuesday, McGonagle said that the cause of the accident remains under investigation. McGonagle said the boy’s father could face charges.

Holmes took a breath test, which showed no presence of alcohol in his system, and also submitted to a blood test.

Lewiston police don’t believe that alcohol or drugs were factors in the incident.