A bomb targeting a passenger train in Pakistan’s Southwest on Monday killed at least six people and wounded over 17 others, officials said. The device, apparently planted on the railway track, exploded when the train approached a station in the Naseerabad district of Balochistan province, NewsWeek Pakistan reported. \"It was a bomb blast, the target was the passenger train. At least six people have been killed,\" said provincial home secretary Asad Gilani, adding that more than 17 other people were wounded in the blast. Zafar Shah Bukhari, a senior official in the area, confirmed the bomb attack and death toll Bukhari said the Jaffar Express was traveling from Rawalpindi to Quetta, the capital of Balochistan. \"We have taken the dead bodies and injured to the nearby hospital,\" Bukhari said, adding that the condition of six of the injured was critical.  The explosion derailed the train, he added. Following the bombing, Pakistan Railways declared an emergency and halted all trains traveling from Quetta to cities in the Punjab and Sindh provinces. No one has claimed responsibility for the blast yet.