On June 1 St. Andrew's flag will be raised on the newest small rocket ship "Vyshniy Volochek" the sixth ship of project 21631 "Buyan-M"

On June 1 St. Andrew's flag will be raised on the newest small rocket ship "Kursk". MRK "Kursk" is the sixth ship of the project 21631 "Buyan-M", capable of carrying on board cruise missiles "caliber"  Source: Минобороны России  

* Note there must be an error as the ship name does not correspond to the list which shows the 6th ship as "Vyshniy Volochek" (see ship details)

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Russian Navy to receive project 21631 Corvette the "Vyshniy Volochek"

Buyan Class Corvettes: Details