Activists sit in a tree house as police attempt to clear the area at the "Hambacher Forst" in Kerpen-Buir near Cologne, Germany, September 13, 2018, where protesters have built a camp with tents and treehouses to stop the clearing of the Hambach forest for a nearby open cast coal mining.

Russian President Vladimir Putin and Defence Minister Sergei Shoigu watch the Vostok-2018 (East-2018) war games at Tsugol military training ground in Zabaikalsky region, Russia, September 13, 2018. Sputnik/Alexei Nikolsky/Kremlin via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY

A man walks through the old city of Damascus, Syria, September 12, 2018.

A woman poses for a picture outside the Ice Cave at the Rhone Glacier in Furka, Switzerland, September 13, 2018.

A man walks his dogs before Hurricane Florence comes ashore on Carolina Beach, North Carolina, U.S., September 13, 2018.

The Union Point Park Complex is seen flooded as the Hurricane Florence comes ashore in New Bern, North Carolina, U.S., September 13, 2018.

A model presents a creation from the Marc Jacobs Spring/Summer 2019 collection at New York Fashion Week, New York, U.S., September 12, 2018.

Palestinian schoolgirls make their way to their school in the Bedouin village of Khan al-Ahmar that Israel plans to demolish, in the occupied West Bank September 13, 2018.

Thousands of wading birds including Oystercatchers fly onto dry sandbanks during the month's highest tides at The Wash estuary, near Snettisham in Norfolk, Britain, September 13, 2018.

A view of Hurricane Florence is shown churning in the Atlantic Ocean in a west, north-westerly direction heading for the eastern coastline of the United States, taken by cameras outside the International Space Station, September 12, 2018. NASA/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY TPX IMAGES OF THE DAY

Afghanistan's Charlie Chaplin, Karim Asir, 25, exercises during his rehearsals in Kabul, Afghanistan August 29, 2018.

Policemen detain an activist as they attempt to clear the area at the "Hambacher Forst" in Kerpen-Buir near Cologne, Germany, September 13, 2018, where protesters have built a camp with tents and treehouses to stop the clearing of the Hambach forest for a nearby open cast coal mining.

Lighting designers Motoko Ishii and Akari-Lisa Ishii present a two-day special light show on the Eiffel Tower to celebrate the Japanese cultural season and 160 years of diplomatic relations between France and Japan in Paris, France, September 13, 2018. REUTERS/Charles Platiau

A Christian man inspects his neighbours' home, destroyed by Islamic State militants in the Christian city of Qaraqosh, Iraq September 12, 2018.

Leone D'Aniello, owner of the antique bookshop "Ex Libris", shows a bijou almanac in Rome, Italy September 13, 2018.