UN's deputy head of the Monusco UN peacekeeping force said one of their helicopters was fired at in Semuliki valley by the rebels but no one was harmed, The East African reports.

Bernard Commins said: "The aircraft was able to land without problems but it had been hit."

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Recent attacks

Last week, 8 UN peacekeepers were killed and other 12 injured during clashes with the ADF in the eastern of Beni, North Kivu.

In October the rebels killed at least 11 people and abducted 15 others, including 10 children aged between 5-10 years.

Who are the ADF rebels?

The ADF rebel group is a Ugandan terrorist organisation which has operated in the DRC's North Kivu province near the Ugandan border since the late 1990s.

The government of Uganda has blamed the rebel group of the well-orchestrated killing of its top officials, including members of parliament.

The main figure of the group was Jamil Mukulu, a former Catholic who converted to Islam. He has been in detention since 2015 following his arrest.