Two people are dead and two are hospitalized after a possibly speeding vehicle smashed into a pair of parked cars in West Covina Saturday morning, and the driver has been arrested for allegedly driving under the influence.

The crash just before 7:30 a.m. initially left three people trapped and one dead at the scene near the intersection of North Grand Avenue and East Toni Drive, according to the Los Angeles County Fire Department.

The California Highway Patrol later said the person declared dead at the scene was a 30-year-old woman.

While officials initially said two of those trapped were transported to local hospitals, that number was later increased to three, one of whom — a man — died at the hospital.

The other two, one of whom was the driver, are in unknown condition, though the driver was placed under arrest at the hospital on suspicion of DUI, according to the CHP.

A neighbor told KTLA that the collision involved one car, an Acura, that struck two parked vehicles, and that all four people involved in the crash were in the Acura, which was “completely totaled.”

“My first instinct was to do whatever I could to help, but when I got there, the car was absolutely totaled, and there was nothing I could do,” he said.

This stretch of Grand Avenue is no stranger to speeding cars, which may have contributed to the crash, the neighbor said.

“It’s very dangerous. I feel like people get off the freeway here and drive like they’re still on the freeway, but they’re not, and stuff like this happens,” he said.