BERLIN, GERMANY - JUNE 28: German Chancellor Angela Merkel speaks with German Finance Minister Wolfgang Schaeuble before she addressed the Bundestag with a government declaration on the recent Brexit vote on June 28, 2016 in Berlin, Germany. European leaders are scheduled to meet at a summit in Brussels later today to discuss the consequences of the British vote to leave the European Union. Merkel called the vote an unprecedented event in EU history but one the remaining 27 member states will weather. (Photo by Sean Gallup/Getty Images)

BERLIN, GERMANY - JUNE 28: German Chancellor Angela Merkel listens to debates after she addressed the Bundestag with a government declaration on the recent Brexit vote on June 28, 2016 in Berlin, Germany. European leaders are scheduled to meet at a summit in Brussels later today to discuss the consequences of the British vote to leave the European Union. Merkel called the vote an unprecedented event in EU history but one the remaining 27 member states will weather. (Photo by Sean Gallup/Getty Images)

TO GO WITH AFP STORY BY CLAUDINE WERY French geochemist at the IRD (Institut de Recherche pour le Developpement), Cyril Marchand, poses on June 28, 2016 in Mont-Dore, near Noumea, next to mangrove plants installed in a greenhouse which recreates the weather conditions similar to what is forecast for the end of the century, to study greenhouse gas. / AFP PHOTO / Fred PayetFRED PAYET/AFP/Getty Images

Members of an Indonesian search and rescue team have a briefing prior to a search and rescue operation in Biak on June 27, 2016. Twelve people are missing after a boat capsized in stormy weather off Indonesia's easternmost province of Papua, an official said on June 27. / AFP PHOTO / STRSTR/AFP/Getty Images

SYDNEY, AUSTRALIA - JUNE 27: (EDITORS NOTE: Image has been converted to black and white.) A visitor to Bondi Beach on a cold and wet day stops to take a selfie in front of a wall mural on June 27, 2016 in Sydney, Australia. Sydney experienced its coldest day of the year on Sunday, and more icy weather is forecast for later in the week when a second cold front hits later in the week. (Photo by Mark Kolbe/Getty Images)

SYDNEY, AUSTRALIA - JUNE 27: Visitors dressed in winter clothing to combat the cold temperatures are seen as a surfer walks to the surf at Bondi Beach on June 27, 2016 in Sydney, Australia. Sydney experienced its coldest day of the year on Sunday, and more icy weather is forecast for later in the week when a second cold front hits later in the week. (Photo by Mark Kolbe/Getty Images)

Members of the 811th Ordnance Company, 321st Ordnance Battalion, 38th Regional Support Group, perform rescue operations and emergency assistance in partnership with local and state emergency first responders in the town of Rainelle, West Virginia, 24 June, 2016 following severe weather and flooding throughout the state. The death toll from flooding in the US state of West Virginia rose to 24, as President Barack Obama declared a major disaster, releasing federal aid for the hardest-hit areas. Days of heavy rain, especially on June 23-24, caused massive flooding in the state, where high waters have washed away cars, trapped hundreds and cut power to large areas. / AFP PHOTO / US ARMY RESERVE / Capt. Sean DELPECH / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / US Army Reserve 310th Expeditionary Sustainment Command / Capt. Sean Delpech " - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS CAPT. SEAN DELPECH/AFP/Getty Images

The Canary Wharf finance district of London, encompasing the offices of HSBC, Citigroup, JPMorgan Chase, Barclays, and other global banking corporations, is pitcured from Greenwich park in south-east London on June 26, 2016. British business minister Sajid Javid on Sunday urged companies not to panic following Britain's vote to leave the European Union (EU) despite dire warnings of the economic consequences of the Brexit vote. "Our economic fundamentals remain strong. They're strong enough to weather any short-term market volatility," he said, after Thursday's vote plunged global financial markets and the value of the pound. / AFP PHOTO / ODD ANDERSENODD ANDERSEN/AFP/Getty Images