Second Deadly Explosion Rocks Russian City


An ambulance leaves the site of a trolleybus explosion in Volgograd, Russia, Monday, Dec. 30, 2013. The explosions put the city on edge and highlighted the terrorist threat that Russia is facing as it prepares to host the Winter Games in February. Volgograd is about 650 kilometers (400 miles) northeast of Sochi, where the Olympics are to be held. (AP Photo/Denis Tyrin)

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Nothing left of this bus





14 dead


(AP) Russia's main investigative agency says a Volgograd bus explosion was caused by a suicide bomber and officials raised the death toll to 14.

The bombing comes a day after 17 people died in a railway station bombing also blamed on a suicide bomber.

Investigative Committee spokesman Vladimir Markin said in a statement that Monday's explosion on an electric bus involved a similar bomb, proving a link between the two attacks.

Public health officials said that at least 14 people were killed in explosion during morning rush hour.

No one has claimed responsibility for either bombing, but they came a few months after Chechen rebel leader Doku Umarov threatened new attacks against civilian targets in Russia, including Olympics in Sochi in February.