A treason investigation has been launched against a Turkish MP who alleged in an exclusive interview with RT that ISIL terrorists delivered deadly sarin gas to Syria through Turkey.

A treason investigation has been launched against a Turkish MP who alleged in an exclusive interview with RT that ISIL terrorists delivered deadly sarin gas to Syria through Turkey.

Ankara’s Chief Prosecutor's Office opened the case against Istanbul MP Eren Erdem of Republican People's Party (CHP) after his interview about sarin was aired on RT on Monday.

"Chemical weapon materials were brought to Turkey and put together in ISIL camps in Syria, which was known as the Iraqi Al-Qaeda at that time."

Erdem noted that the chemicals used for the production of weapons did not originate from Turkey. “All basic materials are purchased from Europe. Western institutions should question themselves about these relations. Western sources know very well who carried out the sarin gas attack in Syria,” Erdem told RT.

As Turkish media reported Wednesday, the prosecutor’s office is planning to send a summary of proceedings to the Ministry of Justice on Thursday. Following that, the summary may be forwarded to the Turkish parliament, which could vote to strip Erdem of his parliamentary immunity.

On Tuesday, MP Erdem issued a written statement in his defense, saying he had become the target of a smear campaign because of his statements made in parliament.

As for his accusations about Turkish businessmen being involved in supplying Islamic State ISIL with the poisonous gas sarin and other reactants needed for chemical warfare, Erdem maintained this statement was made based on the results of a Turkish court investigation in 2013.