PHOENIX, AZ (3TV/CBS5) -- Police say 10-year-old Thomas Martinez has died after a quad he was driving crashed into a parked truck in Phoenix.
The accident happened Saturday afternoon near 16th Avenue. and Broadway Road.
A 9-year-old boy, who was a passenger on the quad, was injured in the crash.
Police say it appears that the children on the quad crashed into a parked truck.
Both young patients were rushed to the hospital.
Thomas was later pronounced dead. The other boy was said to be in serious but stable condition.
"We don't know exactly how the collision occurred, but they ended up colliding with a parked vehicle," said Phoenix police Sgt. James Rothschild.
The truck was not occupied, and it was parked legally on the side of the road.
Police say they're hoping neighbors or other witnesses may have seen the accident and can shed some light on exactly what happened.
Robert Sapien lives near the crash scene and heard the boys on the quad.
"That's awful," said Sapien. "I just hope they get better. They're too young. They have a promising life ahead of them. It's just sad."