Authorities in Bangladesh say at least one person has been killed and at least 19 others injured in a bomb blast north of the capital, Dhaka, during a national strike to protest recent suicide attacks.

Police say the explosion occurred Thursday at a police checkpoint near a court building in Gazipur, 30 kilometers north of the captial. The court complex was the same place where at least six people were killed and 50 others injured in a suicide bombing on Tuesday. Several others were killed in an attack outside a courthouse in the southern port city of Chittagong.

A nationwide general strike was called by Bangladesh's Supreme Court Bar Association to protest the bombings.

Police blamed the attacks on the outlawed Islamic militant group Jumatul Mujahedin Bangladesh, which wants strict Islamic law to be instituted in the Muslim-majority country.

Some information for this report provided by AP and Reuters.