Crimean Tatar leader Mustafa Dzhemilev told 15 Minut news outlet, Censor.NET reports.
Ilmi Umerov and Akhtem Chiygoz left for Turkey from the Simferopol airport.
Attorney Nikolai Polozov wrote on Facebook: "Two more hostages, two Ukrainian political prisoners have been released. Akhtem Chiygoz and Ilmi Umerov are fearless leaders of the Crimean Tatar people. Today they were released from criminal prosecution. This is a natural result of titanic efforts and successful legal, political, and diplomatic work. I want to thank everyone who fought for their freedom and supported them!"
In 2016, FSB investigators initiated a criminal case against Crimean Tatar, deputy head of Mejlis and participant of Crimean Tatars national liberation movement Ilmi Umerov. He is charged with public calls to violate the territorial integrity of Russia.
Umerov's detention, search and the criminal case, and his keeping in psychiatric hospital and pushing through forced psychiatric expertise stirred global response.
Simferopol city court controlled by the Kremlin started hearing the case against Umerov on June 7, 2017. Umerov believes his case is politically charged.
On Sept. 11, the Supreme Court of Russia-occupied Crimea sentenced Chiygoz to eight years in prison.
On Aug. 2, 2016 Russian-controlled Supreme Court of Crimea started to consider materially "the case of Feb. 26" against Akhtem Chiygoz. Earlier, on July 20, 2016, during hearing in camera, the court divided "the case of Feb. 26" into two separate cases: one against Akhtem Chiygoz and another against the rest of the defendants.
After Crimea was occupied by Russia, Kremlin puppets started trials against Crimean Tatar activists who participated in protests in support of Ukraine's territorial integrity. The events took place on Feb. 26, 2014. According to occupant authorities, two protesters were killed in a stampede, 79 people received injuries. Those detained in connection with the case - Akhtem Chiygoz, Ali Asanov, and Mustafa Degermendzhy - were named political prisoners by Russian Memorial human rights center.
Related materials: Reprisals in Russian-occupied Crimea