MICH. — A driver was airlifted to a hospital in serious but stable condition after a two-vehicle crash on US-31 in Ottawa County Tuesday night, and deputies are now searching for a vehicle that left the scene before first responders arrived. The crash happened around 8:15 p.m. on southbound US-31 at Croswell Street. A helicopter then flew that driver to a local hospital, where they are listed in serious but stable condition. Southbound US-31 was shut down at Taylor Street during the investigation. The Ottawa County Sheriff's Office is asking anyone who witnessed the crash, or anyone with information about the Nissan Titan, to contact them.