Two civilians and six Malian officials have been killed in the northern city of Kidal, the UN peacekeeping mission said Sunday, without giving details on the circumstances of the deaths. "The special representative of the secretary-general and chief of MINUSMA, Albert Koenders, condemn in the firmest manner the killing of the two civilians and six Malian officials from the governorate of Kidal," the UN peacekeeping force said in a statement.