Four persons were killed and three others were injured in an explosion at an unlicensed fireworks factory in Hooghly district today, police said.
An explosion occurred at an unlicensed fireworks factory at Chhoto Tajpur under Srirampur sub-division of the district at around 4.30 pm, the sources said.
Four persons (husband, wife and two children) of a family were killed and three others were injured in the explosion, they said.
The three injured have been rushed to hospital, they added.
