The United Nations Security Council has condemned the capture of Goma in the Democratic Republic of Congo by M23 rebels.
A statement by the 15-member council said: "(The council) demands the immediate withdrawal of the M23 from Goma, the cessation of any further advances by the M23 and that its members immediately and permanently disband and lay down their arms."
UN experts claim Rwanda is behind the rebellion in eastern Congo and that Uganda has also aided M23.
I strongly condemn the M23's advance towards Goma and call on it immediately to desist from further violence.
I am particularly concerned by the risk to civilians, the population of Goma and refugees in surrounding areas. I urge those with influence over M23 to call on them to stop fighting and not to provide them any external support.
I call for a cessation of hostilities and for all parties to engage to resolve this crisis without further bloodshed.
Rebels in eastern Democratic Republic of Congo have advanced to within two miles of the largest city in the area, Goma.
The M23 rebels captured Kibumba, a town 19 miles north of Goma, on Saturday and claim they can "easily" take the city.
Col. Vianney Kazarama, a spokesman for the rebels, said: "We can take Goma easily now, we have pushed the Congolese army back over 10 kilometers (six miles) in one day. We are confident that we can take Goma and then our next step will be to take Bukavu".