Congolese troops take up positions on the border with Rwanda Wednesday in the wake of heavy weapons fire between the two countries.<br/> <br />The two countries accuse each other's armies of mounting cross-border raids that led to a rare exchange of attacks.<br/> <br />Congo accuses Rwandan forces of sparking an incident in North Kivu province by seizing and later killing a Congolese soldier.<br/> <br />Rwanda says its army killed five Congolese troops after they crossed the border and attacked their units.<br/> <br />The clash ended months of relative calm in the volatile border zone.
