Rwanda said on Friday it had proof of an intended major attack by the Democratic Republic of Congo and denied it was fomenting conflict inside its neighbour's border.

S&P Global Ratings warned that the escalating conflict between Rwanda and Democratic Republic of Congo could lead to a credit downgrade for the nations as the cost of fighting weakens both their economies.

Rwanda-backed rebels who have captured eastern Congo’s largest city say they plan to take their rebellion to the capital and seek to gain political power.