People attend a ceremonial burning of dried oak branches, the Yule log symbol for the Orthodox Christmas Eve, in Belgrade, Serbia, on Jan. 6, 2017. The Serbs celebrate Christmas in accordance with the Julian calendar on Jan. 7.(Xinhua/Predrag Milosavljevic)
A boy held by his mother lights a candle during ceremonial burning of dried oak branches, the Yule log symbol for the Orthodox Christmas Eve, in Belgrade, Serbia, on Jan. 6, 2017. The Serbs celebrate Christmas in accordance with the Julian calendar on Jan. 7. (Xinhua/Predrag Milosavljevic)
People attend a ceremonial burning of dried oak branches, the Yule log symbol for the Orthodox Christmas Eve, in Belgrade, Serbia, on Jan. 6, 2017. The Serbs celebrate Christmas in accordance with the Julian calendar on Jan. 7.(Xinhua/Predrag Milosavljevic)
A man carries a dried oak branch, the Yule log symbol for the Orthodox Christmas Eve, in Belgrade, Serbia, on Jan. 6, 2017. The Serbs celebrate Christmas in accordance with the Julian calendar on Jan. 7.(Xinhua/Predrag Milosavljevic)
Egyptian Coptic Christians take part in the Christmas Eve mass in the ancient cathedral St. Mark in Alexandria, Egypt, on Jan. 6, 2017. (Xinhua/Asmaa Abdelatif)
Egyptian Coptic Christians light candles during the Christmas Eve mass in the ancient cathedral St. Mark in Alexandria, Egypt, on Jan. 6, 2017. (Xinhua/Asmaa Abdelatif)
A man prays during the Christmas service in Moscow, Russia, on Jan. 6, 2017. Christmas Day is celebrated by Orthodox Christians on Jan. 7. (Xinhua/Evgeny Sinitsyn)
A woman crosses herself during the Christmas service in Moscow, Russia, on Jan. 7, 2017. Christmas Day is celebrated by Orthodox Christians on Jan. 7. (Xinhua/Evgeny Sinitsyn)
A woman prays during the Christmas service in Moscow, Russia, on Jan. 6, 2017. Christmas Day is celebrated by Orthodox Christians on Jan. 7. (Xinhua/Evgeny Sinitsyn)
A woman and her child light a candle during the Christmas service in Moscow, Russia, on Jan. 7, 2017. Christmas Day is celebrated by Orthodox Christians on Jan. 7. (Xinhua/Evgeny Sinitsyn)
A woman gives a candle to a boy during the Christmas service in Moscow, Russia, on Jan. 7, 2017. Christmas Day is celebrated by Orthodox Christians on Jan. 7. (Xinhua/Evgeny Sinitsyn)
