Authorities arrested three men this week in Georgia 's breakaway republic of Abkhazia on charges of plotting the attack in a joint operation with Abkhazian security services , the Russian National Anti-Terrorism Committee said , according to the state-run RIA Novosti news agency . Three men were arrested this week on suspicion of plotting the attack , state media says . The three are accused of planning to blow up a train carrying passengers from Bangkok to Chiang Mai in southern Thailand and then detonate their explosives at an airport or other public place around the country. The Russian resort city of Sochi will host the Winter Olympics in 2014 .
Three men were arrested this week on suspicion of plotting the attack , state media says . The three are accused of planning to blow up a train carrying passengers from Bangkok to Chiang Mai in southern Thailand and then detonate their explosives at an airport or other public place around the country. The Russian resort city of Sochi will host the Winter Olympics in 2014 .