A U.N. agency says a brutal Ugandan-led rebel group has forced 300,000 people to flee in Congo's volatile northeast.

The United Nations Office for the Coordination of Humanitarian Affairs said the Lord's Resistance Army had intensified its attacks. The country's electoral commission has recently asked Orientale region to participate in voter registration ahead of elections scheduled for November.

Last year, Uganda said the number of soldiers in the shadowy group had dwindled to the low hundreds.

The LRA is known for vicious attacks against civilians, for abducting and forcing children to become members of the group and for brutally torturing others. Its leader, Joseph Kony, is wanted by the International Criminal Court.