A Turkish security official on Tuesday said two of the Moscow concert hall attack suspects travelled “freely” to Russia as no arrest warrants were issued against them. Russian authorities detained 11 people in connection with Friday’s attack, which saw camouflaged gunmen storm into Crocus City Hall, open fire on concert-goers and set the building ablaze, killing at least 139 people. Two of those, Tajik nationals Rachabalizoda Saidakrami and Shamsidin Fariduni, “were able to travel freely between Russia and Turkey since there was no warrant for their arrest”, the official told AFP, speaking on …