This is stated on the website of the IC of Russia.

“In connection with the appeal to the Investigative Committee of Russia by representatives of the veteran organization with a request to check the statements of the music performer Alisher Morgenstern about Victory Day, the chairman ... instructed the head of the Main Investigation Department for Moscow Strizhov to organize an inspection,” the statement says. 

Earlier it became known that Morgenstern doubted the need to celebrate Victory Day.

Later, State Duma deputy Mikhail Romanov proposed to study the rapper's statement.

The chairman of the presidium of the public organization "Officers of Russia", Major General Sergei Lipovoy, in an interview with the site "Moscow 24" also spoke about the words of Morgenstern.