More than 900 fire fighters are still trying to put out a forest fire in the Liangshan Yi autonomous prefecture of southwestern China's Sichuan Province, the State Forest Fire Prevention Headquarters said on Monday.

The fire started in Liangshan prefecture's Muli County on Jan. 29, and had engulfed more than 60 hectares of forest as of 5 p.m. Monday, the headquarter said.

More than 900 fire fighters are currently trying to put out the fire but had so far failed to bring it under control, it said, adding that artificial precipitation in the region was unavailable.

The cause of the fire was still unknown.

Jia Zhibang, head of the State Forest Fire Prevention Headquarters and the State Forestry Administration, has urged authorities to quench the fire as soon as possible, punish those responsible for the fire, and take measures to prevent new forest fires.