A 20-storey office building was engulfed in massive flames in central China's Henan Province today (February 1).

In the video, captured in Zhengzhou City, flames and smoke can be seen coming out of the windows of the building.

Firefighters can be seen trying to put out the fire.

According to reports, the fire was caused by the type of insulation material on the building's outer walls.

One security guard was injured and sent to hospital.

The fire is now under control.