There is enough evidence to bring human rights charges against Syrian president Bashar al-Assad over his crackdown on protesters, UN rights chief Navi Pillay said in comments broadcast Wednesday, as US senators recommended providing weapons to the Syrian opposition. In an interview with the BBC broadcast Wednesday but recorded earlier, Pillay said the president’s role as commander of the security forces left him responsible for their actions during the unrest. She also highlighted what she said was the regime’s systematic targeting of children. The Syrian army’s use of heavy weapons against civilians in densely populated areas was a crime under international law, said Pillay. “Factually there’s enough evidence pointing to the fact that many of these acts are committed by the security forces, (and) must have received the approval or the complicity at the highest level,” she said, according to AFP . “President Assad could simply issue an order to stop the killings and the killings would stop...,” the UN Human Rights Commissioner Pillay told the BBC. “So this is the kind of thing that judges hearing cases on crimes against humanity will be looking at on command responsibility.” \"It\'s just horrendous.\" Pillay also spoke of evidence she had seen that the regime was systematically targeting children in its bid to stamp out resistance. Hundreds of children had been detained and tortured, said the South African lawyer. Pillay said the UN Security Council now had enough reliable evidence to warrant a referral to the International Criminal Court (ICC). “There is no statute of limitations so people like him can go on for a very long time but one day they will have to face justice,” she said, referring to Assad. The BBC interview with Pillay was broadcast on Wednesday but recorded before Damascus reportedly accepted the peace plan set out by UN-Arab League envoy Kofi Annan, a development greeted with skepticism by the West. The UN says the conflict has already claimed more than 9,000 lives in the past year.