Secretary-General Ban Ki-moon says he still has "very strong concerns" about the protection of children in Yemen and stands by a report that saw the Saudi Arabia-led coalition being added to a U.N. blacklist for killing and injuring about 1,200 children last year.

Ban said he temporarily removed the U.S.-backed coalition from the blacklist in June pending a joint review of cases because its supporters threatened to stop funding many U.N. programs. He told the Security Council Tuesday that "the forward-looking review continues — and the situation on the ground will be closely monitored."

Ban said he held talks with high-level Saudi officials and received information about coalition measures to protect Yemeni children.

He said this engagement will continue "to ensure that concrete measures to protect children are implemented."