Three drivers tested positive for drink-driving in separate traffic accidents within 90 minutes yesterday. A man, 32, was arrested after his car and three other vehicles collided on the East Kowloon Corridor at 1.30am. In Kowloon Tong, a car hit a lamppost and railings at the junction of Waterloo Road and Cornwall Street about the same time. The driver, 22, was arrested. No one was hurt in either incident. At 3am, a car ploughed into the railings at the Causeway Bay entrance to the Cross-Harbour Tunnel. The driver, 36, suffered injuries to his forehead and face and was taken to Ruttonjee Hospital.