France troops in car
Clashes in central Congo kill at least 13
Eight militia members were killed by security forces before the group fled, according to local media.
The fighting in Mbres displaced hundreds of people from the town.
Shooting erupted in Cantonnier, a town on the border with Cameroon, west of the capital Bangui.
Thousands of people have died and more than a million fled their homes in central African country.
The attack in Bambari comes a day before French Minister Jean-Yves Le Drian was due to visit.
AU official said the organisation is making progress towards a regional military force by end of 2015.
Muslim and Christian groups stand accused of committing abuses.
The peacekeepers have been accused of detaining, abusing, torturing and killing civilians.
French soldiers found the body of Camille Lepage, 26, in a vehicle driven by militia fighters.
The fighting started on Thursday after anti-Balaka fighters looted Seleka food reserves, residents said.
A witness said 102 Muslims guarded by 150 French troops left the northern suburb of PK-12 on Sunday.
Violence between Muslims and Christian simmers despite the deployment of peacekeepers.
The mainly Muslim Seleka rebel coalition seized power in the country a year ago.
There are security concerns following Chad’s decision to withdraw its 850 troops.
The soldiers were wounded a day before the UNSC was due to vote on a new peacekeeping force.
The troops will remain in place while the practicalities of the withdrawal are confirmed.
The UN is trying to urgently evacuate 19,000 Muslims from Bangui and other parts of the CAR.
Mass killings have continued despite the presence of 2,000 French and 6,000 African Union peacekeepers.
Christian militia have carried out brutal reprisals against the Muslim minority.