A 10-year-old boy ran out onto a Medford street Thursday evening and was struck by a vehicle, Suffolk police said.

The child, from Medford, was taken to Stony Brook University Hospital to be treated for a broken femur and cuts, police said.

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The child was with his mother when he ran out onto Granny Road near Mill Road and was hit by an Acura traveling east about 5:30 p.m., police said.

The driver, Santa Mosquea, 32, of Medford, stayed at the scene and was not injured, police said. The Acura was impounded for a safety check, police said.

Sixth Precinct detectives said the investigation continues and ask witnesses to call them at 631-854-8652.