Seleka, a coalition that announced its formation Dec. 10, has now taken four regional centers, Voice of America reported. The group's fighters are believed to be within 200 miles of Bangui, the national capital.
The republic, a landlocked country bordered by Chad, Cameroon and the Democratic Republic of Congo, is one of the poorest countries in the world.
Seleka moved into Kaga-Bandoro on Tuesday. Leaders of other states in the region are pushing for talks, which have not yet gotten off the ground.
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