Moscow attack: from London to Istanbul, tributes to the victims multiply. At least 133 people were killed in an attack claimed by the Islamic State on Friday March 22.
It is the deadliest attack in Russia in twenty years, and the bloodiest to have been claimed by ISIS in Europe. The toll is expected to rise further, according to the authorities. Russia observes this Sunday a day of national mourning. In Istanbul, Madrid, London and Paris, memorials were spontaneously erected in front of Russian embassies.