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,

M23 rebels in the east of the Democratic Republic of Congo have captured the airport serving the key city of Bukavu as they continue their advance. The militants' progress comes despite international calls for a ceasefire and a resumption of peace talks.

Rwandan-backed M23 rebels fighting in eastern Congo seized two towns on their march towards a provincial capital, residents and the rebels said on Friday, as the president seeks international support to end the crisis.

Rwanda-backed M23 rebels captured a strategic airport in the Democratic Republic of Congo, expanding their stranglehold over the country’s mineral-rich eastern region.

The takeover of Bukavu would constitute an unparalleled extension of territory under the M23’s control, as well as a further blow to Kinshasa’s authority in eastern Congo following the collapse of Goma,

M23 fighters on Friday seized the airport serving Bukavu in eastern Democratic Republic of Congo, just as African leaders gathered for crisis talks on the escalating crisis.