The apparent takeover of Goma, a city of about 2 million, has prompted fears of further violence and mass displacement

The war for Goma was the most recent episode of combat in eastern DRC, a volatile region plagued by regional rivalries, ethnic tensions, and armed group battles for more than three decades

Speaking to BBC Newshour while being locked down in a UN bunker in the city, the deputy head of the UN force, Vivian van de Perre, said the M23 rebels had "established" themselves in Goma, but were still facing "pockets of resistance".

Gunfire broke out on Sunday night in the centre of the besieged Congolese city Goma after the Democratic Republic of Congo accused neighbouring Rwanda of sending more troops across the

The leaders of DR Congo and Rwanda are meeting at an emergency East African summit in Kenya on Wednesday as M23 rebels, backed by Rwandan troops, tighten their grip on the strategic eastern city of Goma.