Miscreants blasted a crude bomb at the premises of Rajshahi District Judges’ Court building this morning, on the fourth day of the BNP-led 20 party hartal (shutdown).

None was hurt in the explosion that took place around 10:45am, our Rajshahi correspondent reports quoting Iftekhar Alam, assistant commissioner of Rajshahi Metropolitan Police.

Security has been stepped up in and around the areas including Rajshahi District Jail following the blast.

The BNP-led 20-party alliance has extended its countrywide hartal, which started on Sunday, till 6:00am Friday, demanding return of BNP leader Salahuddin Ahmed who went missing on March 10.