Three medical helicopters were called to the scene of a two-vehicle crash in Fayette County on Monday afternoon, emergency dispatchers confirmed. The crash happened at Route 51 and Reservoir Road in Franklin Township. Watch Sky 4 video over the scene in the video player above. Pennsylvania State Police said one vehicle was driving northbound on Route 51 when another vehicle failed to yield and crossed in front of the first vehicle while entering Route 51 from Reservoir Road. State police said the vehicle crashed into the other vehicle. Police said the occupants of both vehicles were taken to multiple hospitals in the area by medical helicopter and ambulance. Police said they are all expected to survive with minor to moderate injuries. This is a developing story. Stay with Pittsburgh's Action News 4 for updates. Download the WTAE mobile app to stay connected with breaking news.