A Butler County man was killed and a woman injured early this morning in a one-vehicle crash on Pittsburgh's North Shore, authorities said.

Joshua E. Wine, 30, of Zelienople was pronounced dead at the scene of the wreck about 1:30 a.m. on the ramp leading to the Fort Duquesne Bridge.

The woman, whose name was not immediately released, was taken to Allegheny General Hospital with unknown injuries. She was admitted in stable condition.

The initial investigation did not determine who was driving the car, a Ford Mustang, which landed on its roof, said Chris Togneri, a spokesman for the Pittsburgh Public Safety Department.

“This was a really bad crash,” he said. “The vehicle was badly damaged and things got moved around.”

He said first-responders found Wine's body in the car. The woman was outside of the vehicle.

“She was shaken but OK,” Togneri said. “She was talking but a little bloodied.”

Accident reconstruction specialists are investigating the wreck near Ridge and Allegheny avenues. Police said it appeared the driver lost control of the car while traveling from Reedsdale Road toward the bridge.

The crash closed the on-ramp and Allegheny Avenue for several hours. Traffic was back to normal about 5 a.m.