The Democratic Republic of Congo and the M23 rebel group signed on Saturday a declaration of principles to end fighting in eastern Congo, a sign of progress even as sources briefed on the talks said details needed to be negotiated.

The Democratic Republic of Congo and M23 rebels have signed a ceasefire deal in Qatar to end fighting between the warring sides. Dubbed the Declaration of Principles, Saturday's agreement seen by the BBC, says both sides must refrain from attacks, "hate propaganda" and "any attempt to seize by force new positions on the ground".