Police killed four gunmen in a special operation in the town of Khasavyurt, Dagestan, on Wednesday, the press office of the National Anti-Terrorist Committee (NAK) told Itar-Tass. The militants were destroyed as they attempted a breakthrough in Rechnoi Lane where they had been blocked earlier in the morning. The NAK official could not immediately say if there had been casualties among the special task forces of the Federal Security Service and the Interior Ministry that conducted the special operation. At 07:20, Moscow time, the regime of the anti-terrorist operation was imposed in the area where police clashed with the gunmen.