The Confederation of African Football has ordered that an African Champions League semifinal in Algeria be played without fans because of repeated incidents of ”unsporting behavior.”

CAF said on Wednesday that Algeria’s ES Setif had previously been warned and received financial penalties because of the behavior of its supporters.

CAF ruled Setif will host Congo’s TP Mazembe behind closed doors in the first leg of their semifinal on Saturday.

Security at Algerian stadiums came under intense scrutiny after a player was hit and killed by a rock thrown by supporters at a league game last month.

JS Kabylie, the club hosting that game, was banned from playing at its home stadium for the rest of the season, and its fans were banned from all games until next year.