COLOMBO (Agencies) - Government forces overran a former Tamil Tiger police post Sunday, killing at least nine rebels and raising to 66 the number killed in weekend fighting, the Defence Ministry said. Security forces captured the base which had been used as a police station by the Liberation Tigers of Tamil Eelam (LTTE) whose de facto state has been steadily dismantled, the ministry said. It said nine guerrillas were killed and said the military suffered "minor injuries" in Sunday's fighting. At least 57 Tamil rebels were killed on Friday and Saturday as troops moved closer to finally defeating the separatist guerrillas, the Ministry said. "Infantrymen further advanced into LTTE hiding areas... inflicting heavy damages to terrorists," the Ministry said in a statement. There was no comment from the Tigers, but the pro-rebel Tamilnet website said 69 civilians, including 19 children, were killed by military shelling in an area designated as a "safe zone" by the government. Sri Lanka 's army denies targeting the "safe zone" and in turn accuses the Tigers of fabricating reports of large scale civilian deaths. Independent verification of the casualty figures is not possible as the government prevents most journalists, aid workers and international observers from entering the conflict zone. However, the UN human rights chief Navi Pillay on Friday said some 2,800 civilians had been killed in the fighting since January 20, adding that both sides may be guilty of war crimes. Sri Lankan leaders rejected the charges as "unsubstantiated" while Tamilnet said the civilian casualties were higher than the 2,800 figure given by the UN. The website quoted the LTTE's political wing chief B Nadesan as saying that the UN should investigate the Sri Lankan government for alleged war crimes but did not comment on the similar charges against the Tigers by the world body. The military says it has surrounded the Tiger rebels in a narrow strip of land and expects to soon end the guerrillas' decades-long armed struggle for an independent Tamil homeland. The