The European Union is deeply concerned over the violence committed by the police against oppositionists and journalists during the rally in Baku on May 21, the EU statement says, Day.az reports. "The EU calls upon the Azerbaijani leadership to secure freedom of meetings due to the President's decree of May 12 and hopes that future rallies or meetings will not be dispersed. The EU also hopes that the opposition will take all the necessary measures to make demonstrations and rallies peaceful. The European Union will closely watch the developments in the country", the statements runs.