A series of crude bomb explosions at several key locations in Gopalganj on Monday night triggered panic among residents amid a programme called by a banned organisation.
Police have stepped up security across the district to prevent further incidents and maintain law and order.
According to local sources, crude bombs were detonated near the main gate of Gopalganj District School, along the boundary walls of the Government Women's College and passport office, and in front of the Government Technical School and College.
The blasts caused panic among residents in the surrounding areas.
In a separate incident, a crude bomb exploded beside the Upazila Muktijoddha Complex in Kotalipara at around 9:15pm. A group of miscreants arrived on motorcycles, detonated the bomb and fled the scene.
No casualties or damage were reported.
Kotalipara Fire Service Station Master Sirajul Islam confirmed the explosion, saying the bomb went off in an open space in front of the complex.
He said a generator at Café Ekattor, located behind the complex, caught fire shortly afterwards due to overheating. Fire service personnel rushed to the spot and brought the blaze under control.
However, he clarified that there was no connection between the bomb explosion and the generator fire.
Law enforcement personnel rushed to the locations following the incidents. Police have increased patrols and tightened security across the district to prevent further disturbances.
No casualties have been reported in any of the incidents so far.