RUSSIAN investigators have identified the second Moscow metro suicide bomber as a woman in her late 20s from the volatile, mainly Muslim province of Dagestan, officials said.

RUSSIA has identified a 17-year-old widow of a Caucasus militant as one of the Moscow suicide bombers, while the country remained on high alert after the attacks.

One of the Moscow subway suicide bombers was the 17-year-old widow of a slain Islamist rebel from the North Caucasus, a leading Russian newspaper reported today.