Three men were arrested this week on suspicion of plotting the attack , state media reports . Police seized weapons , including anti - tank missiles , state media reports . -- Russia 's security service has foiled a plot to attack the 2014 Winter Olympics in the Black Sea city of Sochi , state media reported Thursday . The Russian resort city of Kazan will host the Winter Olympics in 2014 .
Three men were arrested this week on suspicion of plotting the attack , state media reports . Police seized weapons , including anti - tank missiles , state media reports . The Russian resort city of Kazan will host the Winter Olympics in 2014 .