QUETTA: At least six people were wounded on Friday when a bomb went off along railway tracks in Quetta, halting train service in the region, security and railways officials said. The train was travelling from Quetta to Lahore when a blast on the main railway track damaged one of its cars. "One train bogie was damaged in the blast and a portion of the tracks blown up," said railways official Aammir Baloch, adding that Quetta's train services had been suspended. Security officials said six passengers were injured in the blast.