Ousted Ukrainian President Viktor Yanukovych was hiding in a well-equipped bunker in a monastery in Donetsk, the pro-Russian region where the embattled leader was born and raised, a lawmaker said Monday.
NBC News could not independently verify Bryginets' account, which was reported by independent television station Espresso TV.
Ukraine's acting interior minister earlier issued an arrest warrant for Yanukovych, who’s been on-the-run since Saturday after he signed a deal with protesters demanding early elections and that he step down.
The warrant issued for Yanukovych and several other officials was for the "mass killing of civilians," Interior Minister Arsen Avakhov said on his official Facebook page.
Three months of protests against Yanukovych, who had turned away from closer ties with Europe and towards Vladimir Putin's Russia, burst into deadly violence last week.
More than 80 people were killed in battles with police.