A girl tries on shoes as she waits with members of a caravan from Central America, who are trying to reach the United States, in a temporary shelter in Tijuana, Mexico, November 24, 2018.

Russian jet fighters fly over a bridge connecting the Russian mainland with the Crimean Peninsula with a cargo ship beneath it after three Ukrainian navy vessels were stopped by Russia from entering the Sea of Azov via the Kerch Strait in the Black Sea, Crimea November 25, 2018. REUTERS/Pavel Rebrov - UP1EEBP150TU1

Soccer Football - Copa Libertadores Final - Second leg - River Plate v Boca Juniors - Antonio Vespucio Liberti Stadium, Buenos Aires, Argentina - November 25, 2018 A fan inside the stadium before the match

A woman lies on a stretcher inside a hospital after what the Syrian state media said was a suspected toxic gas attack in Aleppo, Syria November 24, 2018. Picture taken November 24, 2018. SANA/Handout via REUTERS

A girl cries during a rally against gender-based and sexual violence against women in Gijon, Spain, November 25, 2018

A migrant family, part of a caravan of thousands traveling from Central America en route to the United States, run away from tear gas in front of the border wall between the U.S. and Mexico in Tijuana, Mexico November 25, 2018.

Britain's Prime Minister Theresa May arrives with Britain's Permanent Representative to the EU Tim Barrow at an extraordinary EU leaders summit to finalise and formalise the Brexit agreement in Brussels, Belgium November 25, 2018. REUTERS/Yves Herman/Pool TPX IMAGES OF THE DAY - RC1F7FECA360

European Commission President Jean-Claude Juncker, European Council President Donald Tusk and European Union's chief Brexit negotiator Michel Barnier react during a news conference after the extraordinary EU leaders summit to finalise and formalise the Brexit agreement in Brussels, Belgium November 25, 2018. Reuters/Yves Herman

Archaeologists remove the cover of an intact sarcophagus inside the tomb TT33 in Luxor, Egypt November 24, 2018.

Grigory Broverman, a member of the Cryophile winter swimmers club, pours a bucket of cold water over his 9-year-old daughter Liza during a celebration of Polar Bear Day at the Royev Ruchey zoo, with the air temperature at about minus 5 degrees Celsius, in Krasnoyarsk, Russia, November 24, 2018.

A woman attends a rally against gender-based and sexual violence against women in Marseille, France, November 24, 2018. REUTERS/Jean-Paul Pelissier

Women's rights activists gather to march through Taksim Square to protest against gender violence in Istanbul, Turkey, November 25, 2018.