Suspected Ugandan rebels killed six people, hacking one woman to death, and kidnapped five others -- mostly children -- in the Democratic Republic of Congo's restive east, officials said on Sunday.

At least 14 civilians were killed on Saturday in a six-hour attack by rebels on the town of Beni in eastern Democratic Republic of Congo, local officials told Reuters, warning the unrest may hamper efforts to quash an Ebola epidemic in the area.

Six civilians have been killed in an attack attributed to Ugandan Allied Democratic Forces (ADF) rebels in the restive eastern Democratic Republic of Congo, civilian and military sources said Saturday.

Ten people were burnt to death in ethnic attacks in DR Congo's volatile east and seven fishermen were missing Saturday in Lake Edward, where tensions have spiked with the Ugandan navy.

Uganda's army said Friday it had launched attacks on a shadowy rebel group in the eastern Democratic Republic of Congo, where the militants killed 14 UN peacekeepers earlier this month.

Suspected rebels hacked to death at least nine people in north-eastern Democratic Republic of Congo on Tuesday, the army said, the latest in a string of massacres that have killed more than 500 civilians since October 2014.