(Mendocino County, CA) -- Police are expanding their search for the three missing Hart children in Mendocino County, California. Search crews were dispatched yesterday morning to scan 30 miles of shoreline from the crash site to the Fort Bragg area. Police say searchers found a cellphone near the crash site, but it's not yet clear if the phone belonged to any of the Harts. The search is set to resume after today's bad weather lifts. Jennifer and Sarah Hart, along with their three other children, were found dead after their SUV plunged off a California cliff last week. The family lived in Washington state.