Iran's supreme leader vows revenge for killing of his father and predecessor

Zimbabweans return home from South Africa amid anti-immigrant tensions

MSF trains health workers to be sent to Ebola-hit DR Congo

Kenya growth forecast lowered to 4.3%

Teenage tennis star set to play for Ghana in major event

Students abducted in May by Islamic militants in Nigeria recovering

President el-Sissi honors Egypt soccer team

UN Secretary-General calls for AI regulation