Russia yesterday searched for an ethnic Russian member of a North Caucasus militant group who vanished last year and is suspected of involvement in the horrific suicide strike on a Moscow airport.

Investigators have yet to publish any firm conclusions three days after the attack that killed 35 but unofficial reports have made a link with the group and a mysterious explosion in Moscow on December 31.

The Kommersant daily said the investigation was focusing on a man named Vitaly Razdobudko from the Stavropol region just north of the Caucasus mountains who is suspected of belonging to local Islamist militant group Nogaisky Dzhamaat.

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