At approximately 5:30 am, Howe police responded to a single vehicle rollover in the 400 block of S. Collins Freeway. When the officers arrived, they found the male passenger of the vehicle had been ejected and the male driver was up walking around. The driver was transported to Wilson N Jones Hospital by Sherman EMS, the passenger was flown by helicopter to Plano. Both males are from Grandbury, Texas. They were headed to Oklahoma. It appears the driver fell asleep and left the roadway. The crash is still under investigation.