Volgograd blasts: Second suicide bomb hits Russia city
30 December 2013 Last updated at 15:37 GMT
At least 14 people have been killed and over 20 have been injured in a suicide bombing on a trolleybus in the Russian city of Volgograd, investigators say.
The blast comes a day after 17 people died in another suicide attack at the central station in the city.
Oleg Boldyrev reports from the scene.