Authorities in the area have blamed the violence on militia supporters of Gbagbo based in Liberia but officials with the U.N. peackeeping mission in Ivory Coast have said they do not know whom to blame.

CNN: Thousands flee in wake of clashes in western Ivory Coast

The Azzaz attack came as a U.N. human-rights commission said government forces and pro-government militia had committed crimes against humanity including murder, torture, sexual violence and war crimes in Syria, and were responsible for the May 25 killings at Houla of over 100 Syrian civilians.

WSJ: Syria Sends Shocks Through Lebanon, Mideast

On another occasion, U.N. attack helicopters with troops on the ground killed more than 200 members of a militia group moving on Goma.

WSJ: U.N. Peacekeepers at War in the Congo