Suffolk County police are searching for a driver who ran away after rear-ending a pickup truck in East Patchogue on Sunday, sending the occupants to the hospital.

Police said a 2002 Ford pickup truck was waiting to turn into an apartment complex at 891 Montauk Hwy. at about 12:20 p.m. when the truck was rear-ended by a Ford Econoline van.

The driver of the van then got out and began running west on Montauk Highway, police said.

The driver was described as 5-foot-10 with a medium build, and wearing shorts and a yellow T-shirt.

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The occupants of the pickup truck -- the driver and two children -- were taken to Brookhaven Memorial Hospital in Patchogue for treatment of non-life-threatening injuries, police said.

The van was impounded, and police were continuing their investigation, including a search for the driver.