Emergency responders working serious crash involving a motorcycle in Lewisville

Multiple Lewisville FD and PD units are on scene of a major accident involving a motorcycle on Business 121 in the area of Oakwood Lane.
The crash was dispatched as a vehicle and a motorcycle involved with serious injury. This is now being reported as a possible fatality.
A PHI medical helicopter had been requested to standby if needed, but have been disregarded.
It is best to avoid this area.