The European Union's parliamentary election commences in the Netherlands and United Kingdom.
AFM, the financial markets authority in the Netherlands, says it will prepare for financial trading taking place on its infrastructure in the event the United Kingdom leaves the European Union.
Diplomats from Germany, France, Italy, the Netherlands, Belgium, and Luxembourg meet in Berlin to discuss the consequences of the United Kingdom voting to leave the European Union.
The European Parliament adopts a resolution calling for the introduction of an arms embargo against Saudi Arabia, saying the United Kingdom, France and other EU governments should no longer sell weapons to a country accused of targeting civilians in Yemen.
The United Kingdom and the Netherlands call for the European Union to include Hezbollah on its terror list over Hezbollah's stated support for President Assad.
The European Union's parliamentary election concludes in Austria, Belgium, Bulgaria, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Lithuania, Luxembourg, Poland, Portugal, Romania, Slovenia, Spain, and Sweden.