Britain's Prime Minister David Cameron urged Sri Lanka Saturday to move "further and faster" to address allegations of war crimes, saying the issue would remain high on the international agenda. "The Sri Lankan government needs to go further and faster on human rights and reconciliation," Cameron told a press conference at an ongoing Commonwealth summit in Colombo. "I accept it takes time but I think the important thing is to get on the right track," he added. "This issue is not going to go away, it's an issue of international concern."