Israel is questioning the impartiality of one of the three judges probing whether Prime Minister Benjamin Netanyahu and former defense minister Yoav Gallant should be arrested for war crimes by the International Criminal Court (ICC), Reuters reported Wednesday.

Slovenian judge Beti Hohler was appointed three weeks ago following the resignation of the presiding judge, Romanian justice Iulia Motoc, for health reasons.

Reuters saw a statement sent to the court by Israel’s Attorney General’s office asking for Hohler to “provide information to clarify whether there are (or are not) grounds to reasonably doubt her impartiality,” considering that her previous position had been to serve as an attorney in the ICC’s Office of the Prosecutor (OTP).