Senior US diplomat Jendayi Frazer has prolonged her stay in Sudan in the hope that the president will see her, writes BBC online, Tuesday.
Being US assistant secretary of state, she flew to Khartoum at the weekend to urge President Omar al-Bashir to accept UN peacekeepers for Darfur.
So far he has rejected the idea of transforming existing African Union force into a UN mission, and says he is too busy to meet Mrs. Frazer.
UN humanitarian chief Jan Egeland has warned about a new humanitarian disaster in Darfur owing to a lack of security.
