European Council president says EU member states need to stay united

Latvian Prime Minister Maris Kucinskis arrives for the Tallinn Digital Summit in Tallinn, Estonia, Sept. 29, 2017. Organized by the Estonian presidency of the Council of the European Union (EU), the president of the European Council and the European Commission, the Tallinn Digital Summit kicked off on Friday. (Xinhua/Sergei Stepanov)