Chinese police officers stand next to their vehicles as they stand watch near a Tibetan village inside the Jiuzhai Valley National Park in Jiuzhaigou, in northwestern China's Sichuan province, on Feb. 8, 2012.

Tibetans sit on a motor cart outside a monastery after attending a religious ceremony at a monastery in Jiuzhaigou, Sichuan province, China, on Feb. 7, 2012.

Rescuers on the river bank watch a passenger boat capsize after it was hit by a restaurant boat during a rescue operation in the flooded Jialing River in southwest China's Chongqing Municipality on Sept. 20. Heavy rains that have unleashed flooding across southwest China and left at least 14 people dead will continue to pound the region in the coming days.

Residents are evacuated from a flood zone in Guang'an in southwest China's Sichuan province on September 19. Heavy rains that have unleashed flooding across southwest China and left at least 14 people dead will continue to pound the region in the coming days, according to the country's meteorological agency.

In this photo taken Monday, Sept. 19, 2011, rescue workers reach a house in a flooded area by boat in Daxian county in southwest China's Sichuan province.

A firefighter uses a rope to rescue a group of 36 villagers stranded on a section of road which was destroyed by a mudslide in Yinxiu county, in southwest China's Sichuan province, on July 4. Summer downpours pummelled large swaths of south and central China in June. Chinese authorities said that 279 people died in natural disasters in June and another 93 had gone missing, as the country was hit by floods, mudslides and earthquakes.

A resident runs on a flooded stairway as floodwater pours into an underground garage amid heavy rainfalls in Chengdu, Sichuan province, China on July 3. Warnings of further rainstorms and possible floods or landslides have been issued, Xinhua News Agency reported.

A resident carries a child on her back as she walks on a flooded street after heavy rainfalls in Chengdu on July 3.

A resident rides her tricycle as her dog follows on a flooded street in Chengdu on July 3.

People cross Tai Ping Bridge as they participate in the "bridge-treading" event in Jushui town of Mianyang, Sichuan province, China on March 24. Participants throw old clothes and coins from the 200-year-old bridge into the water during the traditional annual event to seek happiness and health, according to local media.