The 11-year-old skateboarder who sustained life-threatening injuries in a collision with a car in South Portland on Wednesday remained in critical condition at Maine Medical Center on Friday night.

South Portland police issued a statement Friday night identifying the skateboarder as Bradin Dingwell of South Portland.

He was skateboarding on Palmer Street Wednesday, entering the intersection with Elm Street in the Turner Island neighborhood, when he collided with a four-door compact Toyota driven by James Mackay, 41, of Lewiston, police said.

Police ruled out speed and alcohol as factors in the crash.

Mackay has not been cited, but the final investigation has not been completed, South Portland Officer Thomas Simonds said.

“The initial investigation showed nothing that we would cite for, but until all avenues of the investigation are complete, we will leave the option open,” Simonds said in an email.

A crash reconstructionist from the Gorham Police Department is helping to investigate the circumstances of the crash.