MOSCOW, May 12. /TASS/. Russian Foreign Ministry spokeswoman Maria Zakharova has said that she is unable to offer any comment on Turkish President Recep Tayyip Erdogan’s statement to the effect about the Black Sea’s transformation into a Russian lake.

"You know, I’m not a medical doctor," Zakharova said, when asked for an opinion regarding Erdogan’s statement.

Turkish mass media on May 11 quoted Erdogan’s statement about the Black Sea and mentioned his intention to bring up this theme at NATO’ summit in Warsaw on July 8-9.