Peshawar, June 28: A passenger bus careened off a road in a remote corner of northwestern Pakistan today, killing six people and injuring 18 others, a government official said. The bus was speeding at the time of the accident in Mohmand region, 50 kilometers northwest of Peshawar, the capital of Pakistan's North West Frontier Province, Irfan Khan said. The injured passengers were taken to a hospital in Peshawar, where at least three were reportedly in critical condition. Bureau Report