Published: Nov 28, 2012 2:13 PM EST

UNITED NATIONS (AP) - The U.N. Security Council is strongly condemning Congolese rebels who seized a provincial capital and is demanding a halt to all violence in the country's volatile east.
In a resolution adopted unanimously on Wednesday, the council extended an arms embargo and other sanctions against armed groups in Congo until Feb. 1, 2014 and said it will consider additional sanctions against leaders of the M23 rebel group "and those providing external support to the M23."
The rebels are believed to be backed by Rwanda.
The rebel force, made up of hundreds of soldiers who deserted the Congolese army, has taken control of many towns in the mineral-rich east, culminating in the seizure of the provincial capital, Goma, last week. Its fighters started pulling out on Wednesday, apparently responding to international pressure.

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