AUBURN — Police on Thursday night were investigating a rollover crash on Washington Street that sent an Auburn man to a Lewiston hospital.

The crash, in the northbound lane between Hackett and Danville Corner roads, was reported at about 8:30 p.m. Police said the driver, Dwayne Libby, 53, may have suffered a medical problem before he crashed and flipped his car into a ditch.

He was treated for cuts and bruises and later released.