The man, who is believed to be responsible for the Russian pilot's death, is identified as Alparslan Chelik.
According to Hurriyet newspaper, Chelik was detained Wednesday evening in Izmir. Alparslan Chelik has reportedly been fighting against the government forces in Syria.
No official explanation for his arrest has been circulated yet, but Russian Foreign Ministry's spokeswoman Maria Zakharova said Thursday that Moscow will study the reports on Celik's arrest and closely follow the developments.
Su-24 pilot Lieutenant Colonel Oleg Peshkov killed by fire from the ground after ejecting from a Russian Su-24 jet downed by Turkey over Syria was posthumously awarded with a Gold Star medal, Russia's highest honorary title.