More than 20 people killed and nearly 100 injured after a suicide bomber detonated an explosives-laden vehicle near a railway track as a passenger train carrying Pakistan Army personnel passed through the southwestern city of Quetta on Sunday. The force of the explosion caused two of the train cars to overturn and catch fire, sending thick black smoke into the air, according to footage shared online. The attack happened in an area where security forces are usually stationed, badly damaging several nearby buildings and smashing more than a dozen vehicles parked along the road, according to witnesses and images circulating on social media.