U.N. Security Council condemns eastern Congo rebel attacks UNITED NATIONS (Reuters) - The U.N. Security Council condemned on Monday attacks by armed rebels in the eastern Democratic Republic of Congo (DRC) and demanded an end to all outside support for multiple insurgencies plaguing the provinces on the Congolese border with Rwanda. M23 rebel advances earlier this month sent the Congolese government army fleeing in droves, displaced thousands of civilians, killed an Indian U.N. peacekeeper and stoked tensions between Congo and Rwanda. In a statement, the 15-member Security Council condemned "all outside support to all armed groups in the DRC and ... demand that all forms of support to them cease immediately." "They further call upon all countries in the region to cooperate actively with the Congolese authorities in demobilizing the M23," the council said. It also noted "with interest" a regional pact to eliminate armed rebels in eastern Congo, which was signed by the presidents of Democratic Republic of Congo and Rwanda and other leaders from the Great Lakes region on Sunday. The Security Council demanded that all armed groups "cease immediately any further advances and all forms of violence" and urged that the commanders of M23, including Ntaganda, be apprehended and brought to justice. The council also expressed deep concern at the worsening humanitarian situation, "the increasing number of displaced persons and refugees and reports of both sexual violence and the use of child soldiers." Reporting by Michelle Nichols; Editing by Lisa Shumaker