California Highway Patrol officers were trying to solve a mystery Wednesday morning in El Cajon after a two vehicle crash.
It happened around 1:45 a.m. on eastbound Interstate 8 and the Mollison Avenue exit.
CHP officers don’t know what caused the crash. They said a 1949 stake-bed truck flipped over, then a Honda Civic ran into the truck.
After an extensive ground and air search, investigators were unable to locate the driver of a Honda Civic.
The driver of the truck was transported to the hospital. The extent of the drivers injuries is unknown.
The CHP said the Civic is registered to a woman, but they were unable to provide any further details.
The vehicles and debris from the wreckage were cleared from the scene within an hour of the accident.