KINSHASA - Rebels from a Ugandan-dominated group on Monday attacked a UN military base in DR Congo's unstable east, killing one peacekeeper and injuring 12 others, the UN mission said. The attack took place in Beni where UN soldiers have been battling the Allied Democratic Forces (ADF), which is dominated by hardline Ugandan Muslims, a spokesman for the UN mission in the Democratic Republic of Congo said. Congolese troops had clashed with the rebels in the area on Sunday. The day before, the ADF attacked around 10 motorbike taxis in the locality.