Officials said at least 10 people were killed and dozens wounded on Saturday when Chadian troops opened fire on civilians in Central African Republic's capital Bangui.
The troops were driving into the city, scarred by religious conflict over the past year, to escort a convoy of Muslims back to Chad in about 15 army vehicles.
Sebastien Wenezoui, a spokesman for the country's Christian militia, the anti-balaka, said, "When they got to the PK12 neighborhood, they suddenly started shooting. People panicked and started running and ducking for cover."
Saturday's shooting was the latest in a string of violent incidents involving Chadian troops, who the anti-balaka accuse of siding with Muslims and Seleka rebels and preying upon the local Christian population. It's still unclear what caused the troops to open fire.