A Charleston County deputy, a woman and a dog riding in her car were injured after the woman’s sport-utility vehicle collided with the deputy’s cruiser at a busy intersection in West Ashley Sunday.

Witness Thomas Bonavita of West Ashley said the deputy was crossing Paul Cantrell Boulevard at Magwood Drive against a red light, with his blue lights on, and collided with a woman driving a Honda Pilot.

Bonavita was in a car directly behind the woman who police say struck the cruiser, and rushed to help.

“There was a lot of blood in her car,” said Bonavita, who said a good deal of it appeared to be from an injured poodle.

“She was calm through the whole thing,” Bonavita said. “She made me promise to stay with her dog.”

He said the deputy appeared shaken but was able to get out of his cruiser unassisted.

According to the state Highway Patrol, Deputy William Fawcett, 43, and motorist Lucia Crull, 58, were both injured and were taken to local hospitals.

The Highway Patrol said Fawcett was crossing Paul Cantrell Boulevard with his lights and siren on when his cruiser was struck on the right side by Crull’s Honda shortly before 2:30 p.m. The Sheriff’s Department offered no additional information.

Both drivers were wearing seat belts. Bonavita said air bags in Crull’s car deployed, and he described both cars as being totaled.

“It’s a miracle nobody died,” he said.

Bonavita said the woman’s veterinarian arrived a short time after the wreck and cared for the injured poodle.

Reach David Slade at 937-5552 or Twitter @DSladeNews.