Russia on alert after suicide bombings kill 31 in two days
MOSCOW (AFP) - At least 14 people were killed on Monday when a suicide bomber blew himself up on a packed trolleybus in Volgograd, raising new concerns about security at the Sochi Olympics a day after a deadly attack on the southern Russian city's train station.
President Vladimir Putin ordered stepped-up security across the country after the trolleybus bombing at the peak of the morning rush and Sunday's suicide attack blamed on a suspected female suicide bomber which claimed 17 lives.
The attacks on Volgograd, which until this year had no record of recent unrest, raised alarm about whether the ongoing anti-Kremlin insurgency in the Northern Caucasus could affect the Sochi Winter Games which open on February 7.
The force of Monday's blast destroyed the number 15A trolleybus, which was packed with early morning commuters and was turned into a tangle of wreckage with only its roof and front remaining.