During a recent visit of Turkey's president Erdogan to Washington, his bodyguards (and maybe other members of the entourage) attacked a small group of protestors. This is odd insofar as, it is a blatant and very visible violation of the host countries monopoly of force - the protestors where not directly threatening Erdogan or members of his entourage, so there was no justification of self defense.
The only other similar incident I can think of was the visit of Persian Shah Palevi to Berlin in 1967, when so-called 'Jubelperser' attacked (aided by the police). According to this article, the 'Jubelperser' where SAVAK agents, other (German language) sources claim they where recruited among Shah loyalists living in Germany and led by SAVAK personnel.
Did, since the end of WWII, another such incident happen anywhere?
To be clear, I am not interested in self defense by bodyguards.