The incident started when coal dust in a ventilation shaft caught fire on Thursday, filling the Siberian mine with smoke and killing 11. By nightfall, a failed operation to reach dozens of missing miners had turned to tragedy after several rescuers reportedly suffocated. An emergency services source told one news agency "no one is left alive". The majority of the 285 people in the the Listvyazhnaya mine, in the Kemerovo region some 3,500km (2,175 miles) east of Moscow, escaped in the immediate aftermath of the incident, at around 08:35 local time (01:35 GMT) on Thursday. Officials said 49 had been...