View of a rush hour traffic jam along Chang'an Avenue of Beijing on Dec 24, 2014. Authorities had warned of "serious traffic congestion" ahead of Christmas Eve, as revellers were expected to go out to celebrate the occasion.

A traffic jam is pictured on roads at the 2nd Ring Road in Beijing, capital of China, Dec 24, 2014.

A traffic jam hit the East Chang'an Avenue in Beijing on Dec 24, 2014.