Kolkata: Two people lost their lives in an explosion while they were allegedly making crude bombs in in Birbhum district of West Bengal on Friday.

The incident occurred at Dubrajpur in Birbhum late last night. The police have recovered a huge quantity of explosives from the site.

Over the past one year, West Bengal has been under the scanner of security agencies as a "secure hideout" for agents of Pakistan's spy agency ISI.

It is feared that that banned organisations like the Jamaat-ul-Mujahideen Bangladesh (JMB) has spread its network in Howrah, and both North and South 24-Parganas districts and set up organisational bases in districts like Murshidabad, Nadia, Burdwan and Birbhum.