A former chief public prosecutor linked to the Gülenist Terror Group (FETÖ) who was sought over his connections in the MIT aid truck probe was captured by police on Monday in Istanbul's Harem bus station.

Yaşar Kavalcıklıoğlu had been dismissed from his post for allegedly violating national security over a 2014 incident where trucks belonging to the Turkey's National Intelligence Organization (MİT) were stopped and searched near Syria.

Kavalcıoğlu was one of the former prosecutors who were facing legal action by the Turkey's Supreme Board of Judges and Prosecutors over his role in the raid.

In January 2014, trucks belonging to MİT carrying aid to Turkmens were stopped and intercepted by security forces upon the order of former Adana Public Prosecutor Özcan Şişman. The supplies in the trucks were seized and MİT staffers were handcuffed before they were detained, which prompted the government to reform its intelligence laws in an effort to avoid such situations in the future. The governor of the province was informed about the incident in its latest phase, and many believe the operation was aimed at creating a political crisis via joint efforts by the Gülen Movement and anti-government media outlets that made the incident public, despite its highly confidential status.Furthermore, an Istanbul court ruled in April for the arrest of 17 high-ranking military officers on charges of stopping and raiding trucks belonging to Turkey's National Intelligence Organization (MİT).Sixteen of the 34 officers were reported to be tasked in the southern province of Adana where the MİT trucks were intercepted by security forces on the order of a prosecutor who allegedly acted on a tip that the trucks were full of ammunition to be delivered to a terrorist organization. The operation that subsequently detained the MİT trucks is believed to be a plot hatched by the Gülen Movement in order to spark a crisis. As more details have been unveiled pertaining to the matter, the possibility that the operation was pre-planned and conducted by members of the Gülen Movement in the police and prosecutors in a purported attempt to defame the government, which it considers its foe, strengthened, prompting the prosecutor's office to investigate the incident.