Looters and armed gangs roamed the streets of the Central African Republic capital after rebels seized control of the city.
The Special Representative of the Secretary-General and Head of MINUSCA Parfait Onanga-Anyanga vigorously condemned the attack, adding that "MINUSCA will do everything in its power together with the legitimate Central African authorities to arrest the perpetrators of these disgusting acts".
The attack in the city of Bangassou also claimed the lives of civilians.
Armed assailants attacked civilian populations overnight on 12 and 13 May, targeting in particular Muslims, in the Tokoyo neighborhood of Bangassou, in south-eastern auto, according to MINUSCA.
Hundreds of civilians are seeking refuge inside a mosque in the Central African Republic's border town of Bangassou amid ongoing attacks by Christian militias that have killed up to 30 civilians, United Nations officials and aid workers said on Sunday.
UN Secretary-General Antonio Guterres issued a statement condemning the attacks, saying he was "outraged" by the assault on the 13,000-strong UN mission.
Spain reiterates its support for the Central African Republic, the United Nations, MINUSCA and other worldwide actors in their efforts to consolidate peace in the African country.
However, UN officials have expressed concerns that the assailants will return to stage further attacks.
United Nations forces pushed the Christian anti-Balaka rebels from areas around the mosque, allowing those inside to leave for a more secure area, according to United Nations mission spokesman Herve Verhoosel.
Five U.N. peacekeepers were killed in May 8 attacks in Bangassou.
Prime Minister Simplice Sarandji condemned the attacks in a statement on local radio on Sunday and said those responsible would be brought to justice.
The attack led to the death and injury of 12 Moroccan and Cambodian peacekeepers.
Vehicle is emerging from civil conflict which began in 2013, with clashes between the mainly Muslim Séléka rebel coalition and anti-Balaka militia, which are mostly Christian. Kamailoudini Tagba, trained as journalist at Togo state radio, worked for the African Network of Culture Promoters and Entrepreneurs (rapec) as news writer.