Dozens of people were detained by police on Tuesday in sweeps through the Russian city of Volgograd post the two deadly attacks in less than 24 hours that have given rise to security fears ahead of the Winter Olympics.
At least 34 people were killed in the two bombing attacks; one at the city’s Railway station on Sunday and the other was a bus bombing on Monday.
There was no indication that any of those arrested was connected to the attacks.
Nobody has claimed responsibility for the blasts, but they underscore vulnerability to bombings and raised fears of attacks by Islamist insurgents whose leader has called on militants to prevent Russia hosting the Olympics in February.
