Rescuers try to douse the fire after an explosion in a firecracker factory in Balaghat, Madhya Pradesh state, India, Wednesday, June 7, 2017. Several people are reported killed. (Photo: AP)

NEW DELHI, Sept. 4 (Xinhua) -- The death toll in Wednesday's blast at a firecrackers factory rose to 22, even as around 20 others were injured in India's northern state of Punjab, local officials told Xinhua over phone.

A powerful blast had reportedly occurred inside the firecrackers factory at Gurdaspur district of the state at around 15:45 local time in the day.

Local media quoted a local senior cop as saying that among the dead were workers of the factory and one of the factory owners, besides some passers-by on the road at which the factory was located.

It is believed that a large stock of firecrackers were stored inside the factory when the blast took place, and soon the whole factory was engulfed in a huge fire.

The teams of the National Disaster Response Force and the State Disaster Response Force have been deployed for the rescue operation.

Punjab Chief Minister Amarinder Singh tweeted "Deeply anguished to learn of the loss of lives due to the blast in the firecracker factory in Batala. Rescue operations are underway with the Deputy Commissioner (DC) and Senior Superintendent of Police (SSP) heading the relief efforts."

The state government has announced an ex-gratia grant of 200,000 Indian Rupees (about $2,857) for the kin of the deceased, and 50,000 Indian Rupees (about $714) for the seven severely injured who were referred to a government hospital in a nearby district.

Local media reported that the same factory caught fire last year.