Southern African countries have agreed to deploy forces to help subdue violence in the eastern Democratic Republic of Congo, where armed groups have terrorised civilians for decades.

A summit of the 16-member Southern African Development Community - which includes South Africa, Angola, Mozambique and Tanzania - has backed the deployment "to restore peace and security in eastern DRC."

Monday's statement from SADC - released from the Namibian capital Windhoek - was reached following talks attended by several heads of states, including DRC's President Felix Tshisekedi, his South African counterpart Cyril Ramaphosa and ministers from the regional group.

However, the meeting did not give the numbers to be deployed nor a timeline for the deployment.

SADC troops to join EAC forces against M23

SADC troops will add to an East African regional military force that has taken over some areas previously occupied by the M23 militia since December 2022, but has so far failed to put a stop to the insurgency.

The Tutsi-led rebels are still present in the DRC's North Kivu province and occasionally clash with rival militia.

The East African Community force draws on troops from Burundi, Kenya, Uganda and South Sudan.

Militia groups have plagued much of eastern DRC for decades - a legacy of regional wars that flared in the 1990s and 2000s.

The M23 militia has captured swathes of territory in North Kivu since taking up arms again in late 2021 after being dormant since 2013.

According to the UN Office for the Coordination of Humanitarian Affairs, the rebel campaign has displaced over one million people since its inception in 2012.