Staff Correspondent
A number of arson and bomb attacks marked the 23rd day of the countrywide indefinite transport blockade enforced by the BNP-led 20-party alliance on Tuesday.
A truck driver and his helper suffered burn injuries as miscreants hurled a petrol bomb at their vehicle in Sitakunda upazila of Chittagong in the morning.
At least 200 people were rounded up across the country including 31 in the capital by law enforcing agencies on the day.  
In the city police nabbed 31 alleged anarchists from different areas in drives conducted from Monday midnight to Tuesday noon. Sources said the law enforcers led a special drive in several areas and detained 31 people on charge of creating violence in the city during blockade and hartal.
Rapid Action Battalion seized 48 petrol bombs and two kilogrammes of gunpowder from Kamrangirchar in Dhaka on Tuesday. A team of RAB conducted a raid in Madrasapara area around 4:15am and recovered the petrol bombs and gunpowder from inside an abandoned under-construction building, said ASP Khairul Alam, Operation Officer of RAB-10.They also recovered 30 empty glass bottles along with one kilogramme of potassium and sulphur each from the site.
Our Chittagong correspondent adds, grievously injured truck driver, Azizur Rahman, 35, and his helper Md Shamim, 23, both hailing from Keshabpur upazila of Jessore, were admitted to Chittagong Medical College Hospital (CMCH) for treatment.
Miscreants threw a petrol bomb at the onion-laden truck when the vehicle reached Suklalahat of Barabkunda on the Dhaka-Chittagong Highway around 7:00am on way to the port city, said Iftekhar Hasan, Officer-in-Charge of Sitakunda Police Station. The condition of Azizur is critical with 18 per cent of his body burnt. Shamim received three per cent burnt injuries, hospital sources said.
In Barisal police have detained a BNP leader's son after patrol bombs were found in a shop at Ekota Bazar under Muladi upazila here.
Md Alauddin, Officer-in-Charge of Muladi Police Station, said on the basis of secret information about supplying patrol-bombs to BNP leaders for carrying out acts of sabotage, police raided the shop of Sultan Fakir, BNP president of Ward No 9 at Kazirchar union, in Ekota Bazar area of Muladi in the morning.
Police detained 107 people, including 13 activists of BNP and its major ally Jamaat-e-Islami, across the Brahmanbaria district during night-long drive from Monday evening to Tuesday morning.
In Sylhet law enforcers, in a drive, detained six Chhatra Shibir leaders with 2,000 books on extremist ideas from Sadar upazila of the district in the wee hours of Tuesday.
While in Habiganj police detained 51 people in night-long special drives in nine thanas on Tuesday. Assistant Police Superintendent (Habiganj Sadar) Masudur Rahman Monir told a news agency that 16 of the detainees were wanted in several cases.