Police are investigating a deadly crash on Interstate 635 in Garland.
At 4 a.m. Sunday, 2 cars crashed on I-635 near Northwest Highway. One of the drivers died on scene. The other was rushed to the hospital.
While officers were investigating, a third car crashed into a Garland Police vehicle. No police officers were injured.
The southbound lanes of I-635 were closed during the initial investigation, but have since been reopened.