The Bush administration is expected to announce new economic sanctions against Sudan over the violence and humanitarian crisis in Darfur. The White House is also preparing to seek U.N. Security Council approval of an arms embargo on the Sudanese government and a ban on Sudanese military flights over Darfur. The Washington Post reports the announcement could anger U.N. diplomats who have reported progress in talks with Sudanese President Omar al-Bashir. Sudan’s state news agency is reporting U.N. Secretary-General Ban Ki-moon has agreed to visit Sudan to negotiate a deal on a joint U.N.-African Union peacekeeping force. More than 200,000 people have been killed and two-and-a-half million displaced since the conflict broke out in 2003.