The investigation has found that the Russian envoy's assassin contacted several people, who used a program of exchanging encrypted messages ByLock, which had been used by members of the group supporting opposition Islamic preacher Fethullah Gulen, FETO, Anadolu news agency reported.
According to the agency's police source, the General Prosecutor's Office in Ankara examined data from the mobile phone of the Russian ambassador's murderer jointly with Russian experts from the Moscow Police Department.
On July 15, a military coup attempt took place in Turkey. Ankara accused Islamic preacher Fethullah Gulen, who has been living in the US state of Pennsylvania since 1999, and his followers of playing a key role in the coup. Since July, Turkey has arrested hundreds of military and police personnel, activists and journalists on suspicion of links with Gulen.
Earlier in December, the Asian Parliamentary Assembly (APA) decided to recognize FETO (Fethullah Terrorist Organization) that Ankara blames for the July coup attempt, to be a terrorist organization.