BHOPAL/HARDA, Feb. 7 -- Seven people were killed and 63 others injured after an explosion leading to a blaze at a firecrackers factory in Harda town of Madhya Pradesh on Tuesday, officials said.

A number of people were also feared trapped in and around the unit, Harda Collector Rishi Garg said.

The incident took place in Bairagarh locality on Magardha road on the outskirts of Harda town, about 150 km from the state capital Bhopal.

Some videos of the incident surfaced on social media showing the fire with intermittent explosions taking place at the site and people running to save themselves.

Efforts were on to control the blaze, according to officials.

"Seven people have been killed and 63 injured in an explosion leading to a fire at ...