Another lawmaker from Turkey resigned on Tuesday over a high-level corruption scandal, further shaking Prime Minister Recep Tayyip Erdogan's grip on power.
Hasan Hami Yildirim had criticised the government for exerting pressure on the judiciary over the graft investigation, which has plunged Turkey into political turmoil just three months ahead of key elections.
A string of public figures including high-profile businessmen and the sons of three ministers were detained on December 17 over allegations of bribery for construction projects as well as illicit money transfers to sanctions-hit Iran.
Five MPs including a former culture minister have resigned from the AKP since the raids, which the government has suggested were instigated by supporters of an influential US-based Turkish cleric.
Erdogan was forced into a major cabinet reshuffle after the resignation last week of three ministers whose sons were implicated in the probe.