A witness told Wales Online the incident involved a black BMW car striking people sitting at a table at Cardiff Gate services before hitting the main building.
“It was awful,” the witness said. “About 15 people were trying to lift the car off.”
She said the front window of the building was shattered in the impact.
“I imagine the driver had a medical emergency as I can’t understand how they went into the building at that speed,” the witness added. “All emergency services are there.”
