The Sudanese government says its troops have defeated an attempt by rebels from Darfur to capture the capital Khartoum. The Sudanese presidential adviser (advisors) said a rebel assault in the city of Omdurman near Khartoum has been fended off. This was denied by the rebel group –the Justice and Equality Movement or JEM. From Khartoum XX reports. 

"One rebel commander Suleiman Sando told the BBC earlier on Sunday that they wanted to send a clear message to the government and the international community, that there was no security in Darfur and from now on there would be no security in Khartoum. The Sudanese government has accused Chad of backing the attack by JEM. Experts say Chad and Sudan are fighting a proxy war using each other's rebels to achieve their military objectives. Schools in the capital are closed and residents remain under curfew. " 

Notes:
a proxy war 代理人战争
curfew 宵禁令（时间） 

Backgroud：

苏丹与乍得互为邻国，苏丹西部达尔富尔地区与乍得东部地区接壤。两国曾长期保持友好关系，但苏丹达尔富尔问题出现后，两国关系出现波折。

５月１０日，苏丹达尔富尔反政府组织“公正与平等运动”的一伙成员潜入苏丹首都喀土穆西北部恩图曼地区，并与政府军发生冲突。这是２００３年２月在达尔富尔地区发生流血冲突以来，当地反政府武装分子首次潜入首都并在那里与政府军发生冲突。经过大约５个小时的交火之后，苏丹 政府宣布粉碎了反政府武装组织的图谋，击毙并俘虏多名武装分子，目前该地区局势已基本恢复平静。随后，苏丹政府指责乍得政府应为该组织潜入喀土穆并从事破 坏活动承担责任，并宣布与乍得断交。