Deadly violence continues to plague Pakistan. A bomb has hit a passenger train in the southwestern Balochistan province. At least seven are dead, over a dozen injured. The bomb was apparently planted on the railway track. It went off when the train approached a station in Naseer-Abad district, causing the daily express to derail. The train was travelling from Rawalpindi to Quetta, the main city in the insurgency-hit province. No group has yet claimed responsibility. Our correspondent says the death toll may rise because six of the wounded are in critical conditio Show Less >>