Syria targets children, says UN human rights chief
28 March 2012 Last updated at 16:56 BST
Syrian authorities are systematically detaining and torturing children, the United Nations' human rights chief, Navi Pillay, has told the BBC.
Ms Pillay said President Bashar al-Assad could end the detentions and stop the killing of civilians immediately, simply by issuing an order.
Syria has accepted a peace plan, amid scepticism about its intentions.
The BBC's Fergal Keane reports.