France's Foreign Ministry said that Congo's territorial integrity was "not negotiable" after Rwanda-backed M23 rebels took the eastern city of Goma. M23 rebels said they would march "all the way to Kinshasa.

GOMA, Democratic Republic of Congo (Reuters) -The United States, France and Britain pressured Rwanda on Sunday over its support for rebels rapidly closing in on eastern Congo's largest city, as government forces struggled to halt an offensive that has forced thousands of civilians to flee.

Gunfire rang out early on Monday across parts of Goma, the largest city in eastern Congo, hours after Rwanda-backed M23 rebels said they had taken control of the city despite the United Nations Security Council's calling for an end to the offensive.