Several incidents of violence, including crude bomb attacks and fires at a BNP office and a train coach, were reported in Khulna over the past 20 hours.
A seat in a coach of the Noksikatha Express caught fire at around 3:40am on Tuesday while the train was parked on platform No 2 of Khulna Railway Station.
Station Master Md Zakir Hossain said the fire was quickly extinguished, with only one seat damaged. The train, which had arrived from Dhaka around midnight, left for Chapainawabganj at 11am after the affected coach was replaced.
He said the fire might have been caused by a mosquito coil lit by someone sleeping inside the coach, adding that a deliberate act of sabotage would likely have spread the fire throughout the coach.
Railway Senior Sub-Assistant Engineer Md Shamim Hossain said the damaged coach was taken to the workshop in the morning for repairs.
In another incident, a crude bomb was thrown at a meeting of ward-level Krishak Dal leaders in a tin-shed room in Daulatpur around 8pm on Monday. The device did not explode, and no one was injured or property damaged.
Khulna Metropolitan Krishak Dal Convener Sajib Talukdar said the bomb was thrown when a meeting was being held. He said party activists later brought out a protest procession.
Daulatpur Police Station Officer-in-Charge Alimur Rahman said police recovered an unexploded bomb-like object from the scene.
Meanwhile, a BNP office in Botiaghata Upazila was set on fire early Tuesday.
Police and locals said two masked youths arrived on a motorcycle near the BNP office in front of Darogar Vita in Ward 8 of Jalma Union around Fajr prayer time. They set fire to a banner outside the office before fleeing.
Locals quickly extinguished the fire. Police later visited the scene.
Botiaghata Police Station OC SM Mizanur Rahman said an investigation was underway to identify those involved.