There have been bitter exchanges in the European parliament during a debate on the UK's vote to leave the EU. A central figure in the Leave campaign, UK Independence Party (UKIP) leader Nigel Farage, was booed, called a liar and accused of using "Nazi propaganda".
BBC: Bitter exchanges as EU parliament debates Brexit
A Union flag (L), and a European Union (EU) flag fly above Europe House, the head office of the UK Representation of the European Commission, and the UK Information Office of the European Parliament, which was formerly the building that housed the headquarters of the British Conservative Party, in central London on June 28, 2016.
