Bulgarian media caught Sofia Mayor Boiko Borisov shaking hands with Hollywood star Sylvester Stallone in front of the municipal building in Sofia on September 28.

The "Bulgarian Rambo," as often the Mayor is dubbed by journalists, met the `real' Rambo on Sunday.

Some say that the meeting was supposed to remain a secret, though if true, it would be hard to explain why photographers gathered in front of the building in advance.

Stallone is rumored to be in Sofia to eye a location for his new film Rambo 5. More details have not been released at the moment.

The Hollywood star departed from Bulgaria on Sunday.