At least four people suffered burn injuries as alleged pickets hurled petrol bombs at a Jamalpur-bound train at Sreepur railway station in Gazipur this evening.

The condition of one of the victims was stated to be critical.

The engine of the Jamalpur Commuter Express came under the attack around 5:30pm when it reached the station from Dhaka, said Mohsin-ul-Qadir, officer-in-charge of Sreepur Police Station.

The wounded were whisked off to Sreepur Upazila Health Complex, he told our Gazipur correspondent.