(NBC News) A suicide bombing on board a bus in the Russian city of Volgograd has left 14 people dead.
The deadly blast came just one day after another suicide attack inside a Volgograd train station killed 17 people.
The attacks have many questioning security ahead of the upcoming Winter Olympics, which will be held in Sochi, just a few hundred miles away from Volgograd.
Read more: http://nbcnews.to/1h9MAMk
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.