VANCOUVER, Wash. – One person died and three people were injured in a four-vehicle crash caused by a suspected DUI driver in the Vancouver area.

The crash on State Route 500 at 182nd Avenue blocked all lanes Tuesday morning. The road reopened by noon.

The driver of a black Cadillac Escalade was westbound on SR-500 when she crossed the center line and crashed into two eastbound vehicles, WSP said. One of the eastbound vehicles collided with a fourth vehicle.

Troopers told KGW the driver of the Escalade, 53-year-old Pamela Alexander, was arrested for vehicular homicide. She may have been under the influence of prescription drugs during the crash, said WSP Trooper Will Finn.

Troopers said 68-year-old Jonna Porteous died at a hospital after the crash.

Alexander was injured in the crash and taken to a hospital. Two other drivers were also hurt.