Russian officials say a blast on a bus in Volgograd killed more than a dozen people Monday, just one day after a suicide bombing killed 17 people at the city's train station.
Russian President Vladimir Putin has visited the city of Volgograd, the site of this week's twin suicide bombings that left 34 people dead.
Passengers on board a Russian research ship are still anxiously awaiting rescue, nearly a week after being trapped in Antarctic ice.
A female suicide bomber blew herself up in the entrance hall of a Russian train station on Sunday, killing at least 14 people in the second deadly attack within three days as the country prepares to host the Winter Olympics.
Officials say a car bombing in central Beirut has killed former Finance Minister Mohamad Chatah and at least four others.