A fire broke out in a hospital building under construction in Changsha, the capital city of central China's Hunan province, around 1:00 pm on Dec 9, 2011, people.com.cn reported Friday. 

The fire broke out at the top of the 22-story building, which is being built for the Hunan Provincial People's Hospital. Eight fire trucks were sent to the scene to fight the blaze.

The cause of the fire is still unknown and no casualties have yet been reported.

Dense smoke rises from a hospital building currently under construction in Changsha, the capital city of Central China's Hunan province, Dec 9, 2011.[Photo/163.com]