Investigators have released new information on Sunday's fiery crash involving a San Diego police patrol car.
According to California Highway Patrol investigators, the crash occurred after a police officer traveling south on Interstate 5 near Palm Avenue drifted onto the right shoulder and struck a sign.
The on-duty officer then turned to the left, hitting a gray Dodge Challenger according to the CHP.
The force of the impact pushed both cars into the center divide.
The patrol car burst into flames. Both drivers were able to get out of their vehicles and were treated for minor injuries officials said.
The names of the SDPD officer or additional victim involved in the crash have not been released. SDPD Officer Dan Lasher gave some details about the officer's condition to NBC 7 San Diego Sunday.
"He was conscious and talking at the scene, but they were talking about a possible head injury, so he was taken to a local hospital to be checked out," Lasher said.
CHP investigators said it's not known why the patrol car drifted onto the right shoulder.