Hoogly: A powerful explosion took place in a fireworks factory at Shivchandi area in West Bengal`s Hooghly district Monday, police said.
Unconfirmed reports said that four persons were killed in the explosion that occurred in the Dhaniakhali police station limits.
Additional Superintendent of Police, Ashes Biswas said that the explosion was powerful considering that the roof and walls of the factory were blown away.
The police were proceeding to the spot.
Local Trinamool Congress leader Aseema Patra said considering the intensity of the blast, it was probable that substances other than fireworks were being manufactured.