Doku Umarov, a Chechen separatist leader, has claimed responsibility for the suicide bombings in the Moscow metro that killed at least 39 people on Monday, according to a video posted on an unofficial separatist website.<br /><br />Ziyad Sabsasi, the Chechen envoy to Moscow, spoke to Al Jazeera about Umarov's claim and his reaction to the blasts.<br /><br />(March 31, 2010)
