About 50 people were injured in the Austrian city of Graz Saturday when a man driving a jeep-style vehicle ran amok, dpa quoted police as saying. Unconfirmed reports quoting witnesses said two people died in the incident. The witnesses said the driver, who was later arrested, had also attacked people with a knife. Panic broke out on a busy square, where there are a number of cafes. Some people escaped by seeking shelter in nearby buildings.