The Bangladeshi authorities on Monday rang alarm bells as serial bombings again rocked several districts on Sunday and Monday, so far leaving three people dead and over a dozen injured.

A security bulwark has been put up around the capital Dhaka tightening the security system at all entry points to the metropolis, the private news agency UNB quoted police administration as saying on Monday.

"We have alerted our men to take all necessary action against any attempt of criminal actions," Mizanur Rahman, Dhaka metropolitan police commissioner, was quoted by UNB as saying, with news of orchestrated bomb explosions in Chittagong, Chandpur and Laxmipur travelled fast into the capital.

Supreme Court and lower courts, bus, rail and launch stations, shopping complexes, commercial buildings, banks, foreign missions as well as all key-point installations and sensitive places in Dhaka have been placed under special surveillance by the law enforcers.

One person was killed and five others, mostly lawyers, were wounded when two powerful bombs exploded at District Judge Court building in Chandpur district in southeastern Chittagong division at about noon on Monday.

Seven people, including a police constable, were injured when two bombs exploded at the District Judge Court building Monday morning at Laxmipur district also in Chittagong division.

Another bomb blast occurred at about 11:55 a.m. Monday at Chittagong Metropolitan Magistrate court in the southeastern port city Chittagong, leaving one person injured and forcing suspension of the proceedings of all courts in the port city. Two unexploded bombs were recovered from the scene.

State Minister for Home Affairs Luthfuzzaman Babor Monday said several suspects were caught red-handed from all the three sites of bomb blasts in Chandpur, Laxmipur and Chittagong.

"I've heard about the blasts at three places, but no details about it," he was quoted by UNB as saying after presiding over a meeting at the Home Ministry on deployment of 35 mobile courts in the city on the eve of Ramadan.

Babor said police were already kept in full alert and for that it has been possible to nab some suspects with the help of people.

On Sunday night, unidentified criminals carried out bomb attacks in southwestern Satkhira district and eastern Brahmanbaria district, which left two people dead.

Two people were killed and three others critically wounded when some criminals threw five bombs on a fish depot in Satkhira. A gang threw the bombs one after another at about 7:30 p.m. on Sunday when people were gossiping at the Nur Mohammad fish depot.

Meanwhile, a bomb was exploded in front of the government mother care clinic in Brahmanbaria at 8:20 p.m. on Sunday.

Police on Sunday recovered four batteries and leaflets that warned of further bomb attacks if hotels and restaurants were not kept shut during the Ramadan.

The blasts on Monday and Sunday struck when the incident of Aug. 17 serial bombings across the country is fresh in people's memory.

Source: Xinhua