Moscow Airport Blast LIVE UPDATES VIDEO

Moscow Airport Explosion: LIVE UPDATES On Domodedovo Airport Blast (VIDEO)

MOSCOW (AP) -- An explosion shook the busiest airport in the Russian capital on Monday afternoon and an aviation official said an unspecified number of people were killed.

There was no immediate word on the cause of the explosion in the international baggage-claim area at Domodedovo airport.

Russia's Investigative Committee said there were at least 20 casualties in the blast and the state news agency RIA Novosti quoted a spokesman for the Russian aviation agency, Sergei Izvolsky, as saying there were dead among the casualties.

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You can follow live updates as the situation develops here.