Hundreds of Chadians fled violence in the Central African Republic, joining thousands who have left in the past week.
Chadians living in the Central African Republic have been accused by some of backing anti-government rebels called the Seleka.
Similar accusations have been made about the Chadian contingent of the African peacekeeping force in the Central African Republic.
The Central African Republic has been wracked by violence since March when the Seleka rebels ousted President Francois Bozize.
The conflict has become increasingly sectarian in tone, with the mostly Muslim Seleka militia clashing with Christian groups.
Some Muslim Central Africans are reported to be among those fleeing the country.
The African Union has sent nearly four thousand troops to Central African Republic while France, the former colonial power, has also deployed one thousand six hundred soldiers there.