A Calgary man claims his 15-year-old son was injured while in police custody recently.

The teenager, who cannot be named under the Youth Criminal Justice Act, is accused of leading officers on a high-speed car chase through the city last Tuesday.

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Several people reported seeing a stolen truck speeding through red lights last Tuesday. (CBC)

Police say the stolen truck under pursuit reached speeds of 110 km/h in a 50 km/h zone, ran four red lights, narrowly missed a pedestrian and rammed police cars before it was surrounded in an alleyway.

But the teen's father says his son suffered injuries not connected to a crash. He said there was no airbag deployed.

"My son — 15-years-old and 100 pounds — was kicked in the head by 20 plus police officers who in turn lied and said the injuries happened during the accident," he said.

"Well, his ear has almost been ripped off, his teeth are crooked, his head has been glued shut and someone needs to know about that."

The man says his son is in a lot of pain and having trouble eating because of the condition of his teeth.

"Kids should be punished for wrongdoing but never ... beaten," the father said.

Police say they haven't received a complaint connected to this case, and anyone with concerns about police conduct should contact the Calgary Police Service's professional standards section.

The boy was denied bail when he appeared in court Monday morning. The Calgary courtroom also heard about the teen's lengthy criminal record, which began when he was 12.

The teenager is back in court next week.