An old woman was injured following a loud explosion inside a house in Birbhum district. The intensity of the blast was so much that door of the house was torn apart and tossed away, sources said.
The police said investigations were on to understand the reasons of the blast.
This particularly because the site of the blast is not far from Khagragarh in neighbouring Burdwan district where a blast in 2014 killed two militants besides opening the lid of an elaborate terror network run by Jamat ul Mujahideen Bangladesh.
The blast site is also a few kms away from the Simulia madarsa from where the modules of JMB were functioning.
“We are investigation into the matter and nothing can be conclusively said at this point,” said a senior police officer of the district.