Two people were taken to the hospital after a crash Monday in Crystal Lake, police said. The Crystal Lake Police Department, Crystal Lake Fire Rescue District and McHenry County Sheriff’s Office responded about 5 p.m. to the scene on Route 31, Deputy Police Chief Derek Hyrkas said Tuesday morning. Northbound Route 31 at Ray Street closed for about an hour as police investigated the crash, which occurred just north of Route 176 at River Birch Boulevard, he said. The investigation is ongoing.