The U.N. says three young females, including a minor, have accused U.N. peacekeepers of raping them in the Central African Republic. The announcement comes a week after the U.N. chief fired the head of the peacekeeping mission there over the handling of a series of similar allegations.

A spokeswoman for Ban Ki-Moon says the peacekeeping mission first heard of the allegations Aug. 12, but it was not clear when the alleged rapes occurred.

Spokeswoman Vannina Maestracci says the alleged rapes occurred in the city of Bambari. The only country listed as having U.N. peacekeeping troops there is Congo.

Maestracci did not know how many troops are accused.

The U.N. says the country has 10 days to say whether it will investigate. Countries have the sole responsibility to prosecute their troops.