The U.N. says it has fired nine staff members from its agency for Palestinian refugees, known as UNRWA, after an internal investigation found they may have been involved in the Hamas-led Oct. 7 attack against Israel.

The U.N, secretary-general’s office announced the move in a brief statement to journalists Monday. It did not elaborate on the UNRWA staffers’ likely role in the attack. It said the nine included seven staffers who were fired previously over the claims.