Leaders of Eastern and Southern African regional blocs met for an unprecedented joint summit on Saturday to find a solution to a conflict in eastern Congo, where Rwandan-backed rebels’ rapid advance since January has fanned fears of a wider war.

The M23 rebels last week captured Goma, the largest city in eastern Democratic Republic of Congo - the worst escalation of fighting in more than a decade that has left thousands dead. Despite announcing a unilateral ceasefire, they have continued to march south towards the city of Bukavu.

Leaders from Eastern and Southern African regional blocs gather in Tanzania on Saturday to seek a solution to the conflict in eastern Congo, where Rwandan-backed rebels have seized a major city in the worst escalation of fighting in more than a decade.

Rwandan President Paul Kagame and his Congolese counterpart Felix Tshisekedi joined a summit in Tanzania on Saturday where regional leaders called for an "immediate ceasefire" in the Democratic Republ

Congo's leader Felix Tshisekedi and his Rwandan counterpart Paul Kagame, who have exchanged fiery words blaming each other's governments for the upsurge in violence, agreed to attend the summit, although Tshisekedi called in remotely, sources said.

Leaders of the regional blocs met for a joint summit to find a solution to the conflict and the rapid advance of Rwanda-backed rebels.