Nevsky Express bombing: A bomb explodes on the Nevsky Express train between Moscow and Saint Petersburg, derailing it and causing 28 deaths and 96 injuries.

The 2009 Nevsky Express bombing occurred on 27 November 2009 when a bomb exploded under a high speed train travelling between the Russian cities of Moscow and Saint Petersburg causing derailment near the town of Bologoye, Tver Oblast, on the Moscow–Saint Petersburg Railway. The derailment occurred at 21:34 local time. Russian officials had stated that 39 people were killed and 95 injured but later retracted that estimate. 27 deaths had been reported by 2 December. A second bomb exploded at the scene of the investigation the following day, injuring one. It was reported to have been triggered by a remote mobile phone.

The Nevsky Express is a Russian Railways express train, formerly the fastest on the prominent route between the Leningradsky Rail Terminal in Moscow and the Moskovsky Rail Terminal in Saint Petersburg. The train has a maximum speed of 200 km/h (125 mph) and does not make any intermediate station stops. It consists of a Škoda Chs200locomotive, 13 passenger cars and a restaurant car. It features 6-person compartments in some cars and airline style seating in other cars.

Moscow is the capital and largest city of Russia, standing on the Moskva River in Central Russia. It has a population estimated at over 13 million residents within the city limits, over 19.1 million residents in the urban area, and over 21.5 million residents in its metropolitan area. The city covers an area of 2,511 square kilometers (970 sq mi), while the urban area covers 5,891 square kilometers (2,275 sq mi), and the metropolitan area covers over 26,000 square kilometers (10,000 sq mi). Moscow is among the world's largest cities, being the most populous city entirely in Europe, the largest urban and metropolitan area in Europe, and the largest city by land area on the European continent.