Turkey’s Environment and Urban Planning Minister Erdoğan Bayraktar, whose son was arrested as part of the corruption investigation, has called on Prime Minister Recep Tayyip Erdoğan to resign and rejected what he called “pressure” on him, Today’s Zaman reported.

Bayraktar told NTV network on Wednesday, Dec 25, that he is resigning as a minister and as a deputy as the corruption scandal widens.

Bayraktar's son was briefly detained in the graft probe. Interior Minister Muammer Güler and Economy Minister Zafer Çağlayan, whose sons are among 24 people in police custody since the affair erupted on Dec 17, resigned earlier on Wednesday.