Russian President, Dmitry Medvedev, has delayed his trip to this years Davos Economic Forum in Switzerland. He said the incident was a "terror attack", and expressed his sympathy for the victim's families. Medvedev has also outlined the government's security response.

Russian President Dmitry Medvedev said, "I have asked the minister of transport, along with the interior minister, and the Federal Security Service, to take all necessary actions to implement appropriate legislation regarding transport security. It is necessary to form a task force to carry out an investigation without delay. The mayor and governor of Moscow are due to arrive at the scene shortly. We need to investigate quickly while the trail is still warm. Following previous attacks, we enacted several laws. It is necessary to check their effectiveness and how they are being implemented now."