The European Union (EU) is expected to sanction nine individuals in connection with violence in the Democratic Republic of Congo (DRC), two EU diplomats said on Friday.

They did not identify the people set to be listed, in keeping with the practice of not revealing such details before the sanctions are officially approved. EU foreign ministers are expected to approve the sanctions in Brussels next Monday.

Rebels of the M23 group have seized east Congo's two biggest cities since January in an escalation of a long-running conflict rooted in the spillover into Congo of Rwanda's 1994 genocide and the struggle for control of Congo's vast mineral resources.

Congo is currently considering whether to send representatives to peace talks with the M23 group that Angola plans to host next week, government sources said on Thursday.

Rwanda is accused of backing the Tutsi-led M23 rebels, a charge it denies.

The EU summoned the ambassador of Rwanda last month, calling on the country to "immediately withdraw" troops from Congolese territory and to "stop supporting the M23 and any other armed group".

EU foreign policy chief Kaja Kallas has also said that the 27-nation bloc will review its agreement with Rwanda over critical raw materials due to the country's links with the M23 rebels. Rwanda denies providing arms and troops to M23 rebels.

Congo's government has said at least 7 000 people have died in the fighting since January. At least 600 000 people have been displaced by the fighting since November, according to the UN humanitarian affairs office.