Kolkata: Police in Kolkata have seized a large consignment of potassium nitrate, which is used both in fertilisers and explosives.
Acting on a tip-off, the Special Task Force (STF) of Kolkata Police stopped a lorry near Tala Bridge on BT Road in north Kolkata late on Friday night. The mini lorry was coming from Balasore in Odisha and was going to North 24-Parganas.
On searching, the STF team found 27 gunny bags in the lorry containing about 1,000-kg potassium nitrate.
Neither the driver Indrajeet Bhui nor the conductor Padmalochan Dey was clearly stating the purpose of ferrying such a large quantity of potassium nitrate. This made the STF arrest them and confiscate the lorry.
The duo was produced at Bankshall Court today and the judge sent them to police custody till 23 March.
STF said that they were yet to ascertain whether the consignment was meant for use in explosives or in fertiliser.
To unearth this mystery, an STF team has left for Balasore to talk to the factory staff from where the potassium nitrate consignment was sourced. Another team is at an undisclosed location in North 24-Parganas where the consignment was to be delivered.
STF sources said that by quizzing the arrested driver and conductor, they have tracked down two more men involved in the shipment.