Thirty people were killed and 57 hurt in clashes between mainly-Muslim militia and UN peacekeepers in Central African Republic, the UN mission said on Thursday.
Thousands displaced from violence have gathered near the UN base in Central African Republic.
Central African Republic descended into conflict in 2013 when Muslim Seleka rebels overthrew the Christian president. That ushered in a brutal reign in which the Muslims committed atrocities. When the rebel leader left power, a backlash by the Christian anti-Balaka militia against Muslim civilians followed, and sectarian violence has continued.
Hundreds of the former Seleka rebels have regrouped in Kaga-Bandoro.