WALLER COUNTY, Texas - Emergency crews are on the scene of a plane crash in Waller County Tuesday morning.Firefighters are battling flames from the plane that are sending large plumes of smoke into the air.Officials tell FOX 26 that multiple people were reportedly onboard the plane, which went down near the intersection of Morton Road and FM 2855.DOWNLOAD THE FOX 26 APP FOR THE LATEST ALERTSAll 21 occupants were able to make it off the plane, only one person is reported injured.SkyFOX was over the scene and showed the crash near the Henriksen Jet Center airstrip.It is unknown what caused the crash.AdvertisementThis story is developing and will be updated accordingly..