The U.N. says Rwanda-backed rebels are expanding their presence in eastern Congo after capturing the region's major city.

Rwanda-backed rebels who have captured eastern Congo’s largest city say they plan to take their rebellion to the capital and seek to gain political power

Unconfirmed reports say the Rwanda-backed rebels are currently advancing towards Bukavu, the second-biggest city in the mineral-rich east, despite international calls for a ceasefire. In a televised address after the fall of Goma,