18 Die in New Suicide Bomber Attack in Volgograd - Russian Media
An explosion at a train station Volgograd, Russia, killed at least 18 people on Sunday, Russian media reported.
The RIA Novosti news agency said dozens were injured, citing police.
It is the second bombing in the southern Russian city in two months and comes less than six weeks ahead of the Winter Olympics in Sochi, which is located less than 1,000 kilometers (620 miles) from Volgograd.
No one has claimed responsibility for the attack.
In October, a bomber blew up a passenger bus, killing six people and wounding more than 30 others. Russian media reported that a female Islamist suicide bomber from the Russian region of Dagestan was responsible for the attack.
The restive region of Chechnya is also located in this southern portion of Russia.