UN chief Ban Ki-moon said he was "deeply disturbed" to learn of another attack by unidentified armed assailants on a convoy of the African Union-United Nations Hybrid Operation in Darfur (UNAMID) near Kabkabiya, North Darfur, in which one Rwandan peacekeeper was killed. "The Secretary General expresses his sincere condolences to the family of the fallen peacekeeper, and to the Government of the Republic of Rwanda," a UN statement said. The attack took place Sunday. "The Secretary General condemns in the strongest terms this attack on UNAMID and expects the Government of Sudan to take swift action to bring the perpetrators of this and previous attacks on UNAMID to justice," it stressed.