DHAKA, Oct. 9 (Xinhuanet) -- At least 20 persons were injured in a powerful bomb blast in front of the office of the ruling Bangladesh Nationalist Party (BNP) in western frontier district of Jessore late Saturday night, police sources said on Sunday.

    A police officer in Jessore town reached by phone told Xinhua Sunday that "the powerful bomb with loud bang exploded in front the BNP office in Keshabpur under Jessore last night. Several leaders and activists of the youth front of BNP were gossiping in front of the office when the bomb exploded injuring 20 of them."

    All the injured were brought to Jessore hospital and they are undergoing treatment. Condition of some of the injured were critical.

    "We have dispatched a police team to investigate the bomb incident. None claimed the responsibility for the blast," said the police officer preferring anonymity.

    The Islamic militants made countrywide bomb attacks on Aug.17, which covered 63 districts of the total 64, killing three people, injuring over 150 others. In another bomb attacks in three courts in three districts on Oct. 3, three people were killed and scores others injured. Police have arrested more than 400 suspects after the Aug. 17 bombings. Enditem