KARACHI: A railway employee was injured and traffic was suspended at one of the most important links following a bomb blast in Pakistan’s restive Balochistan province on Monday, an official said.The explosion targeted the track linking Mach and Ab-e-Gum area in the northwestern province, disrupting traffic, the official said.A spokesperson for the Pakistan Railways said that the explosion appeared to be an act of terrorism aimed at causing damage to the national transport infrastructure. “This railway line is critical as it links southern and central Pakistan,” the official said.He said that the injured was moved to a local hospital, where his condition is reported to be stable.The spokesperson said security forces were combing the area to ensure public safety, and the bomb disposal squad also arrived at the site to clear any additional threats.The explosion comes amid rising concerns over critical infrastructure, security and the increasing vulnerability of transport networks in the region.