Rescuers are unable to get near the Xichang Fireworks Factory in Hepu County as it was engulfed in fire.
The number of casualties are not yet known, state-run Xinhua news agency reported.
Nearby residents said they heard two explosions.
Explosion rocks fire works factory in China
Don't miss the most important news and views of the day. Get them on our Telegram channel
First Published: Oct 24 2012 | 4:35 PM IST
