Russia and Turkey see their relations worsening / Photo from svopi.ru

 "A relevant law is taking effect on February 15," the source said, TASS reported.

Russia suspended the visa-free regime with Turkey on January 1, 2016, after the Turkish Air Force downed a Russian Su-24M aircraft over Syria where Russia is reportedly carrying out a counter-terrorism operation at the request of Syrian President Bashar al-Assad.

Until now, Russian journalists needed no entry visas to Turkey for short trips. They were requested to get temporary accreditation at the Turkish Press and Information Department upon their arrival in Turkey.

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Under the current regulations, journalists need visas only for permanent accreditation.

In December 2015, the Turkish authorities introduced new rules of obtaining work permits in Turkey for Russian journalists. From now on, Russian journalists need to submit a letter from their employers to the Turkish embassy explaining the purpose of a trip and specifying the place and time of the visit as well as the names of people whom they want to interview.