York Regional Police say charges have been laid against a driver who struck and killed a pedestrian in Newmarket late Monday night. The collision occurred near Davis Drive and Parkside Drive shortly before 11 p.m. Police said a female pedestrian suffered serious injuries and was later pronounced dead in hospital. The driver, a 22-year-old man, remained on scene and was subsequently charged with dangerous operation causing death, according to police. He is expected to appear in court on Tuesday.