Tipped off, a team of Detective Branch (DB) of Police raided the house of one Alamgir Zamindar at West Madarbari under Doublemooring Police Station and nabbed Imam Hossain, 32, and Samsul Karim, 25.

Police seized about eight kilogram sulphur powder from their possession. They failed to produce any legal documents for keeping the powder.

DB sources said they were examining whether the two arrestees have any link with the countrywide series bomb attack on August 17 and October 03.

In another raid, Kotwali police nabbed two criminals identified as Md Suman Meah, 20, and Asgar Ali, 22, from a house at Jhautola in the early hours.

Police recovered one Light Gun (LG) and two cartridges from them.

Separate cases were filed in these connections.