Rwanda-backed rebels in eastern Congo claimed Friday to have seized a second airport in the region following a days-long advance, as the U.N. warned that the recent escalation of fighting with government forces has left 350,

(Reuters) -Rwandan-backed M23 rebels entered eastern Democratic Republic of Congo's second-largest city Bukavu on Friday, a rebel leader told Reuters, as residents reported seeing the militants in the streets of a northern district.

The Rwandan-backed rebels' entry into Bukavu follows their capture of Goma, defying international calls for a ceasefire.