Six persons, including two residents of Bihar, have been arrested from different locations in Malda district in the past 24 hours with around one kilo of brown sugar — a derivative of heroin.

Malda police and the Criminal Investigation Department conducted joint raids as they had information that the drug was being supplied to Calcutta and Bihar from Malda district.

On Wednesday night, the officials arrested Serajul Sheikh and Dalu Sheikh from Khochpara of Birnagar under Baishnabnagar police station with around 250 grams of brown sugar. Jalaluddin Momin was nabbed from Shershahi under Kaliachak police station with 275 gram of the narcotic.

On Thursday morning, Kaliachak police seized 540 grams of brown sugar from an SUV that was heading to Bihar and arrested Pranab Roy and Ranjoy Roy, both residents of Bhagalpur in Bihar, along with driver Sandip Chowdhury.

The estimated price of the seized drug is around Rs 40 lakh. Malda district SP said cases under the NDPS Act had been registered against all the arrested persons.

“We will continue to conduct such raids to prevent smuggling and peddling of narcotic substances in the district,” he said.