A 12-year-old student riding his bike in Borough Park is in critical condition after getting hit by a Lexus sedan early Wednesday morning, police said.

The child was cruising near the intersection of Cortelyou Road and Dahill Road just before 7 am when a 24-year-old driver in a grey Lexus GS350 hit him and knocked him to the ground, witnesses and police said.

“I heard the sound, boom!, and I ran outside. I saw the man on the ground bleeding from his face… His whole head was covered in blood,” Tuncay Dogan, 32, who witnessed the crash, said.

“He hit the bike on the driver’s side of his car. You could see the fender and hood on the driver’s side were damaged.”

A mangled black helmet was left on the scene as the child was rushed to Maimonides Hospital in serious but stable condition.

“He is in surgery now at Maimonides. He is in critical condition. His mother is in Israel,” Rabbi Jack Mayer told reporters.

The driver of the Lexus remained on scene and police said the crash appeared to be an accident; no summonses were given.

Additional reporting by Gabrielle Fonrouge