UN diplomats mark war's 'Christmas truce' of 1914 with round of 'Silent Night,' penalty kicks

One hundred years after an unofficial "Christmas truce" in which British and German soldiers stopped fighting for a day in World War I, diplomats have gathered at the United Nations to mark the moment with "Silent Night" and penalty kicks.

U.N. Secretary-General Ban Ki-moon played referee as diplomats in jerseys lined up on a lawn on the U.N. compound to take good-natured — and often bad — shots on goal.

They also sang a stanza of "Silent Night" in English and then in German as "Stille Nacht."

The soldiers a century ago also sang and played football. Ban called the events un-choreographed and "quite extraordinary." He said about 100,000 troops took part in the brief truces to mark a shared holiday.

Millions were killed in that war.