Following a joint raid by the National Investigation Agency (NIA) and the Special Task Force (STF) of Kolkata Police, materials meant for making improvised explosive devices (IED) were seized from some houses at Nayagram area of Sagardighi in Murshidabad district.

About 50 detonators, some wires, batteries, tin containers, all kept in bags, were also recovered, sources said. Sleuths interrogated one Ahammad Ali, a suspected 33-year-old operative of the Islamic terrorist organisation Jamat-ul- Mujahideen, Bangladesh (JMB), who was arrested on Monday from New Farakka railway station.

The necessary information was extracted from him leading to today’s raid in Sagardighi. Two suspected JMB activists were arrested by the STF last week, one from Murshidabad, another from Phansidewa. Fifty kilogram of explosives in the form of ammonium nitrate was also recovered from them.

Both were involved in planting IED as well as a low intensity blast in Bodh Gaya last month during the visit of the Dalai Lama. On the day after the duo was arrested, the STF conducted a raid at the Dhulian town in Mushidabad for Ahammad Ali. They did not find him but they discovered gelatin sticks, four bags of am – monium nitrate, each weighing 50 kg.

Fifty detonators were also seized along with used and un used bomb sockets and tif fin bombs. DC STF Murli Dh – ar said,there are at least 6-7 un its comprising 10-12 JMB members each in Dhulian.