Since November 1, Grigorov has been banned from carrying out his journalistic work in Moscow following the expulsion from Bulgaria of Alexander Gatsak, a correspondent of the Russian publication Rossiyskaya Gazeta. 

At the time, the website of the Russian Foreign Ministry reported that Grigorov had been ordered to surrender his accreditation as a "reciprocal measure" in response to the "persecution" of Gatsak by the Bulgarian services, which declared him "a threat to national security". 

The management of the BNR has already officially stated that "The expulsion from Russia of the only correspondent of a Bulgarian media is a purely political act to the detriment of freedom of access to information".