DHAKA, Feb. 22 (Xinhuanet) -- Twelve suspected extremists were arrested in different parts of Bangladesh in the last two days amid a recent wave of bomb blast incidents in the country.

    According to the Daily Star on Tuesday, six out of the 12 suspects were arrested by police on Monday before dawn in Dhamrai area, some 20 km northwest to the capital Dhaka, as they were roaming in midnight with bomb-making formulas, masks, wigs and important documents belonging to an extremist organization from Dhamrai.

    Three other youth suspects were held in Jahangirnagar University(JU) in Savar area adjacent to Dhaka city, as JU authorities found with them a timer and an audio tape containing aspeech protesting attempts to arrest Osama Bin Laden.

    Police Sunday also arrested three extremists of Jagrata Muslim Janata Bangladesh (JMJB: Awakening Muslim) in the northwestern district Joypurhat. Local police there suspected one of them was involved in a recent bomb attack at the Bangladesh Rural Advancement Committee branch office in the same district.

    Meanwhile, a hand grenade exploded at Shaidingi shrine in Moulvibazar of the northeastern Sylhet district on Sunday night, when thousands of people were participating in a religious rally organized by local Shiah community only 200 yards off the scene ofthe blast.

    The blast badly damaged the shrine and blew up its roof, while fortunately no casualty was reported so far.

    Immediately after the explosion, locals captured a local Imam and a madrasa (Muslim primary school) teacher on suspicion, and handed them over to police. Police said the detainees had confessed their involvement in the explosion, but declined to elaborate on the details.

    In the wake of a recent wave of bomb attacks on various places including some nongovernment organizations, the country's intelligence agencies have mounted surveillance on a number of listed mosques in the north-western region, hoping to ascertain which clerics were known to deliver ultra-religious statements andpreach Jihad, the Daily Star report quoted anonymous source from police headquarters as saying. Enditem