The fire started around 5pm on Friday near Baizi village in Yajiang county of Sichuan’s Tibetan autonomous prefecture of Garze, according to an update on the Ministry of Emergency Management’s official website.
Strong winds on Saturday afternoon caused the fire to quickly spread over multiple mountain ridges, it added.
Chinese state media blocked from blast site, raising press freedom debate
Chinese state media blocked from blast site, raising press freedom debate
There have been no reports of casualties so far, local authorities said.
A resident of provincial capital Chengdu, located 500km (311 miles) from the site, said the wildfires turned the sky orange on Saturday.
“At first, I thought it was a rare sandstorm from the north before I watched TV news about the huge wildfire in Yajiang County,” Wang said on Sunday.

Official news agency Xinhua reported that a photovoltaic power station in the region had not been affected, but communication with a hydroelectric station had been interrupted.
A section of a highway that passes through the region has been temporarily closed.
A total of 15,000 local people joined 9,200 firefighters to combat the Guizhou fires, according to local authorities.
Guizhou police detained 10 people for illegal use of fire in mountainous areas, which sparked wildfires that killed two firefighters.