Fire scene at the Beijing central business district taken by sina micro blogger.[Photo/t.sina.cn]

Firefighters said that no one had been killed or trapped after a workshed caught fire in downtown Beijing on Thursday afternoon.

The fire broke out on the third floor of a three-story workshed at a construction site, north of a school in the Hujialou neighborhood around 5 pm, according to the city's fire department.

Fire fighters extinguished the fire around 6:20 p.m..

The cause of the fire is under investigation.

The shed that caught fire was located near the city's central business district and heavy, high-reaching smoke caught the attention of many local residents, causing panic in the micro-blog community.