A Charleston County sheriff’s deputy involved in a wreck Thursday on U.S. Highway 78 was struck by a drunk driver, according to the South Carolina Highway Patrol.

Robert Cart, 60, was one of several deputies in the area of 9919 Highway 78 investigating a hit-and-run when he was involved in a two-vehicle wreck about 9:20 p.m., sheriff’s Maj. Jim Brady said.

Cart was attempting to make a U-turn on the road when the fully marked Crown Victoria he was driving was struck in the side by a 2004 Jeep Liberty, Highway Patrol Senior Trooper Bridget Wyant said.

Wyant identified that vehicle’s driver as Debra Shanholtzer, 45, of Goose Creek.

Shanholtzer was arrested and charged with driving under the influence, Wyant said. Cart was cited with failure to yield.

No injuries were reported in the incident, Brady said.

The original hit-and-run involved a pedestrian being hit by a vehicle. The pedestrian was transported to a hospital with non-life threatening injuries, Brady said.

The vehicle involved in the auto-pedestrian incident left the scene, Brady said, and no information is known about it or the driver involved.

That incident remains under investigation by the Sheriff’s Office, Brady said.