Iceland announces that it will suspend operations at its embassy in Moscow, Russia, beginning on August 1, saying that "commercial, cultural and political relations" with Russia are "at an all-time low" and that maintaining the embassy is "no longer justifiable".
Czech foreign minister Jakub Kulhánek issues Russia with an ultimatum to return all of the Czech diplomats it had expelled from the Czech embassy in Moscow, following a series of reciprocal moves between the two countries since April 17 to expel each other's diplomats after the Czechs discovered Russian intelligence involvement in the 2014 Vrbětice ammunition warehouses explosions. Kulhánek threatens to expel more diplomats from the Russian embassy in Prague if the ultimatum is not met.
Austrian troops and police conduct a border exercise simulating a possible mass arrival of migrants similar to one in 2015, amid tensions within the European Union over migrant rescue ships and fears that Germany may close its borders.
Following Austria's and Germany's decision to waive their asylum system rules, approximately 6,500 migrants – mostly from Syria, Iraq, and Afghanistan – arrive in Vienna. They traveled from Hungary by bus, train or on foot. The migrants were given the opportunity to register in Austria or move on to Germany.