Pittsburgh Police are investigating a report by a campaign volunteer for John McCain that she was mugged and the letter B was cut into her face following a robbery in Bloomfield last night.
Police say that Ashley Todd, 20, of College Station, Texas, reported that the attack occurred around 9 p.m. after she withdrew $60 from an ATM at Liberty Avenue and Pearl Street.
She said a man armed with a knife demanded her money. She gave it to him and began walking toward her car, which has McCain stickers.
Although the robber had moved away from her, he became agitated when he saw her car, punched her in the back of the head, pushed her to the ground and carved a B into her face, she reported.
"This is what she's telling police," police spokeswoman Diane Richard said. "We can't substantiate it at this time."
Police are checking video footage from a bank surveillance camera.
Ms. Richard said Ms. Todd declined medical treatment at the scene.
The suspect is described as black, 6 feet 4 inches, about 200 pounds. He was wearing dark clothing.
The McCain campaign tonight confirmed that both Republican candidates telephoned Ms. Todd to express their concern and well-wishes, but out of respect for her privacy they would have nothing more to say.
The campaign of Barack Obama issued the following statement:
"Our thoughts and prayers are with the young woman for her to make a speedy recovery, and we hope that the person who perpetrated this crime is swiftly apprehended and brought to justice."