A nail bomb placed onto a train by a suspected terrorist has ripped through a carriage in St Petersburg killing at least 12 people and injuring 50 more today. The terrifying incident, which is being investigated as a terror attack by officials who say the killer has been captured on CCTV, took place on a train that was travelling between Sennaya Ploshchad and Sadovaya metro stations. The attack has left dozens injured, including children.
http://www.dailymail.co.uk/news/article-4375518/Explosion-metro-St-Petersburg.html
