Turkey has arrested two men suspected of spying for the United Arab Emirates and is probing if they are tied to Saudi journalist Jamal Khashoggi's murder, Anadolu state news agency said on Friday.
The two were detained as part of an investigation by Istanbul prosecutors into alleged spying by the Gulf state, Anadolu reported. It was not clear when they were arrested.
A critic of the Saudi regime, Khashoggi was killed October 2 in the Saudi consulate in Istanbul by a team of 15 agents sent from Riyadh. His body has never been recovered.
After first denying the murder, Saudi Arabia later said rogue agents had carried out the operation.
A trial of 11 suspects opened earlier this year in Saudi Arabia.
Much of the case remains unclear, including the role of Saudi Arabia's powerful crown prince and de facto ruler, Mohammed bin Salman.
Turkey has delicate relations with Saudi Arabia and the United Arab Emirates, two of the Arab states that imposed a blockade on Qatar, one of Ankara's close allies.
Turkish President Recep Tayyip Erdoğan has repeatedly said he would keep investigating Khashoggi's death and has criticised the lack of cooperation from Riyadh.