Moscow, Sept 3, SPA -- Two strong explosions roar out near the seized school in southern Russia, followed by a continuousrattle of gunfire. Heavily-armed soldiers are seen racingtoward the school. The school, where heavily armed militants are holdinghundreds of hostages, is cordoned off and not visible.Journalists are being kept far from the scene. It was notimmediately possible to determine the cause of theexplosions, which happened as an NTV reporter wasbroadcasting a live report from the scene. A series of explosions over the previous 24 hours haverepeatedly raised tension around the school, where anxiousparents are maintaining their vigil. Past explosions havebeen blamed on the hostage-takers shooting off grenadelaunchers when they perceive movement near the building. The explosive-strapped militants have reportedlythreatened to blow up the building if authorities try tostorm.--SPA1224 Local Time 0924 GMT www.spa.gov.sa/197637