Militiamen killed 12 people in a night raid on a village in eastern Democratic Republic of Congo near the shore of Lake Albert, a local human rights group said on Tuesday.
The group and an army spokesman blamed the attack on CODECO, one of many militias operating in Congo's conflict-ridden east.
CODECO's fighters are drawn mainly from the Lendu farming community, which has long been in conflict with Hema herders. The group could not be reached for comment.