At least four people, including one policeman, have died and 12 people have been injured in a blast, which took place during an Eid congregation in Bangladesh on Thursday, International Business Times reported. 

The blast took place at the Sholakia field in Kishoreganj area, around 100 km from Dhaka, at around 9:45 a.m local time. 

According to a local media report cited by the publication, a moltov cocktail bomb was thrown at the crowd. 

The attackers are believed to be hiding inside a house and an encounter is currently underway.

Source: MENA