The fighting occurred in the town of Bambari, according to UN sources there and in the capital Bangui. A CAR soldier was also injured.
Total number of refugees and internally displaced is the highest ever recorded for CAR, UNHCR warns
Shooting of taxi operator leads to disturbances in which 2nd young man killed, official says
Security Council expresses serious concern over dire humanitarian situation in the country
Antonio Guterres says international community should not abandon violence-stricken nation
Christian anti-Balaka militia accused of attacking Muslims in the country's south killing at least 20
Over 20 worshippers killed when Christian anti-Balaka militia broke into mosque in southeastern CAR during Friday prayers
Rebels killing civilians with impunity, spurring more violence in CAR, according to latest report by Human Rights Watch
On Monday, another Moroccan and four Cambodian soldiers were also killed in an attack on their convoy near Bangassou.
Urgent need for militias in Central Africa Republic to lay down arms also stressed during Touadera's visit to South Africa
One of the world's poorest nations, the Central African Republic has been struggling to recover from a three-year civil war between the Muslim and Christian militias that started in 2013.
Rights watchdog says war crimes suspects 'roam free' as victims await justice in Central African country
With half of the country facing food insecurity, 40 percent of children under three are chronically malnourished, which can lead to stunting.
Fighting between rival "anti-Balaka" militias and Seleka rebels prompted CEMAC to move from Bangui to Gabon's capital Libreville more than a year ago.
Rival armed groups in the Central African Republic are expected to sign a new disarmament deal.
Eight armed groups in the Central African Republic made the commitment in the capital to release all children associated with their forces.
Thousands have been killed and around a million displaced from their homes in violence that has gripped the impoverished landlocked country
Nearly one million of Central African Republic's 4.5 million residents have been displaced [Getty]
On Tuesday, UN peacekeepers backed by French troops recaptured government buildings controlled by seleka militiamen.
In January, the anti-balaka denied they played a role in Sayo's kidnapping.
Central African Republic government says rejects ceasefire deal made in Kenya between two militia groups.