The ITAR-Tass news agency is reporting that the Russian crisis center says militants have given up the fight at a school that was besieged. An official has said the death toll there could be significantly higher than 150.
Hours after much of the school was secured late Friday afternoon, a large explosion erupted from the school toward nightfall, the ITAR-Tass news agency reported.
Ten terrorists were killed in the violence, including nine Arabs, an aide to President Vladimir Putin said, according to the Interfax news agency.
The Arab presence among the attackers would support Putin's contention that al-Qaida terrorists were involved in the Chechen conflict, where Muslim fighters have been fighting Russian forces in a brutal a war of independence for most of the past decade.