VOLGOGRAD, Russia - Police detained dozens of people on Tuesday in sweeps through the Russian city of Volgograd after two deadly attacks in less than 24 hours that raised security fears ahead of the Winter Olympics.
A man wounded when a bomber set off a blast in the city's railway station on Sunday died overnight, bringing the toll in that attack to 18. Investigators said 14 people died in a bus bombing on Monday but health officials put the toll at 16.
There was no indication that any of those arrested was connected to the attacks.
Nobody has claimed responsibility for the blasts, but they underscored 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.
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