Organisers of the Olympic torch relay say the flame will reach Tibet on Saturday in a one-day stop that has been shrouded in secrecy.
The torch will reach Lhasa after winding through Xinjiang province, also in China’s restive west.
The torch was originally supposed to go through Tibet on June 18 or 19.
It is not clear why the date was changed. A violent uprising in ethnic Tibetan areas throughout China in March led to a security clampdown in the region.
The stop, originally set for three days, was cut to one earlier last month to make way for a switch in the visit to Sichuan province, the site of a devastating May 12 earthquake.