More than 130 people are thought to be injured and at least 35 killed by a suicide bomber at a Moscow airport.
Russian media reported smoke billowing out of the baggage claim area at Domodedovo airport, with people running out of the emergency exits.
It is thought that the blast happened inside the international arrivals hall.
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Unnamed officials said three suspects were being sought over the attack and it is believed that Russia's North Caucasus region is responsible.
Russian President Dmitry Medvedev has vowed to track down and punish those responsible.
Security has been stepped up across Moscow following the deadly explosion.
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