A bus driver is being investigated after his double-decker crashed into a bridge in Castle Peak Road, near Nam Sang Wai, Yuen Long, yesterday. The top of the bus, route 76K, which runs between Yuen Long and Fanling, was cut off by the bridge, which allows only vehicles below 3.5 metres underneath. Police and KMB are investigating why the driver, aged 39, tried to drive under the bridge, which was not on the usual route. The accident occurred at 4.30 am. No passengers were aboard at the time. A police officer was slightly hurt by glass from a broken window during investigation. He was treated and later discharged from Pok Oi Hospital.