People hold lamps containing sacred flames in a square of Otog Front Banner on Jan 21. [Photo/people.cn]

Hundreds of Mongolian ethnic children chant odes during a sacrificial fire ceremony held in a square of Otog Front Banner on Jan 21. [Photo/Xinhua]

A torchbearer holds a flame while walking to the ignition site in a square of Otog Front Banner on Jan 21. [Photo/Xinhua]