PHILADELPHIA (CBS) – Philadelphia Police are looking for a hit-and-run driver who they say hit a motorcycle and two other cars – sending four people to the hospital Monday night.

The collision took place at 52nd and West Thompson Street in West Philadelphia at 6:30 p.m.

Police say the 35-year-old man on the motorcycle was taken to the hospital in critical condition. Two other men in their 30s and a 10-year-old boy were also taken to the hospital. Their condition has not been released.

Police are looking for a Cadillac which they say fled the scene.

The incident is under investigation.

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