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This image taken from video received late Monday, Feb. 7, 2011 by The Kavkaz Center, a website affiliated with Chechen rebels, shows insurgent leader Doku Umarov speaking in a video in which he claims responsibility for last month's deadly suicide bombing at Russia's largest airport. It was not clear when or where the video was recorded. Image Credit: AP

Moscow: Top Russian government officials told parliament yesterday about their investigation into last month's deadly airport bombing, the day after Chechen rebel leader Doku Umarov claimed responsibility for the suicide attack.

In a video posted late on Monday on a website affiliated with rebels in the Caucasus, Umarov said he ordered the January 24 suicide bombing of Moscow's Domodedovo Airport and that more such attacks will follow, if Russia does not allow the region to become an independent state governed by Sharia.

The bombing of Domodedovo, Russia's largest airport, killed 36 people and injured about 180.

Russian investigators said the bomber was a 20-year-old man from the Caucasus region, which includes Chechnya, but have not released his name or other details. Parliament was briefed yesterday in a closed session, and no details were immediately released.

"You see this special operation carried out by my order... more special operations will be carried out in the future," Umarov said in the video, wearing a camouflage uniform and a skullcap.

"Among us there are hundreds of brothers who are prepared to sacrifice themselves" in further attacks, he said. "We can at any time carry out operations where we want."

Umarov said that the rebels will continue their fight to free the Caucasus from Russian rule and voiced solidarity with militants in Afghanistan, Iraq and Pakistan. The Federal Security Service, the KGB successor agency charged with fighting terrorism, refused yesterday to comment on Umarov's claim.

Over the weekend, the website released another video in which Umarov also threatened more attacks, saying 2011 would be "the year of blood and tears" and that he could call on 50 to 60 suicide bombers if necessary.

Wars

Chechen rebels have fought two full-scale wars against Russian forces since 1994. Major offensives in the second war died down about a decade ago, but the Islamic insurgency has spread increasingly across neighbouring North Caucasus provinces.

Umarov, who became the top Chechen military leader in 2006, has claimed responsibility for an array of attacks, including last year's double suicide bombing of the Moscow subway system that killed 40 people.