Xinjiang police have seized and destroyed a further 5,700 guns in the latest crackdown on the illegal possession of firearms. Some of the weapons had been used in separatist attacks and many of the others had been used by gangsters to commit robberies, a deputy head of Xinjiang's Public Security Bureau, Liu Keqin, was quoted as saying by the official China News Service yesterday. The weapons were seized during a crackdown on separatists, religious extremists and terrorists. The agency described the campaign as the largest in recent years in the Muslim region. The campaign saw police conduct an extensive province-wide search. In some cities, households were required to sign a statement declaring that they had no weapons or explosives, the report said. It was the second such campaign conducted by Xinjiang police this year following an operation in May. The latest crackdown brought the number of guns seized this year to 11,000, the report said. Details of the crackdown coincided with a report in an official magazine outlining a series of attacks unleashed by separatists in Xinjiang this year. The News Weekly - a magazine published by the CNS - said separatists were responsible for a spate of attacks in a two-week period during spring this year. Three assassins broke into the home of a judge, stabbed him more than 40 times and seriously injured his wife, the magazine said. Soon afterwards, a group calling itself the Uygur Holy War Organisation raided a police station and killed its director, Chen Ping, it added. The report slightly contradicted an earlier account that claimed Chen was killed when he tried to capture the activists, and labelled him a 'martyr'. Dilixati Raxiti, a spokesman for the Sweden-based East Turkistan Information Centre, confirmed the two attacks reported by the magazine but said the assaults were not related to the group in Sweden. He said the situation in Xinjiang was deteriorating because ethnic Uygurs had been discriminated against and many unemployed were forced to turn to crime.