In the preamble of the resolution, the Council welcomed of the Comprehensive Peace Agreement in Nairobi, Kenya, by the Sudanese government and Sudan People's Liberation Army/Movement (SPLA/M). It recognised that the parties to the agreement had to bring about peace and prevent further violations of human rights and of the ceasefire in Darfur. The Security Council was also concerned about the humanitarian situation and the safety of aid workers, and called on all parties to co-operate with the African Union Mission in Darfur.