The Union Jack (R) and the European Union flag are seen flying outside The Rock hotel in the British Colony of Gibraltar, May 19, 2016. REUTERS/Jon Nazca

The Union Jack (R) and the European Union flag are seen flying outside The Rock hotel in the British Colony of Gibraltar, May 19, 2016. REUTERS/Jon Nazca

The Union Jack (R) and the European Union flag are seen flying outside The Rock hotel in the British Colony of Gibraltar, May 19, 2016. REUTERS/Jon Nazca

June 13, 2016 1:38 PM (UTC+8)