Several cocktail bombs exploded at different locations in Dhaka University and near Pallabi Police Station on Sunday evening, while a school bus was set on fire in the capital’s Bhatara area.
At least three explosions were reported on the Dhaka University campus around 6:30pm. The blasts occurred near the Senate Building, beside the Mohsin Hall field and at the Teacher-Student Centre (TSC).
Students detained three men suspected of involvement in the explosions and handed them over to Shahbagh Police Station.
The detainees were identified as Rejaul Karim, 42, from Natore; Sohel Rana, 33, from Rajshahi; and Najmus Saad, 33, from Gopalganj.
According to police, the objects recovered from the explosion sites initially appeared to be similar to Indian chocolate bombs.
DU Proctor Professor Israfil Ratan said the materials did not appear to contain ingredients that could cause serious damage. He suspected the incidents might have been intended to create panic.
Separately, a cocktail bomb was thrown into the premises of Pallabi Police Station at around 7:30pm.
Two unidentified men arriving on a motorcycle reportedly hurled the explosive from an adjacent flyover before fleeing.
A member of the Special Response Battalion (SRB) sustained minor injuries from splinters in the blast.
No arrests had been reported in connection with the incident.
In another incident, unidentified individuals set fire to a bus belonging to Jolsiri Cantonment School and College on the 100 Feet Road near Notun Bazar in Bhatara on Sunday evening.
No casualties were immediately reported in the fire.
The incidents came amid a series of explosions and arson attacks in different parts of Dhaka over the weekend, raising concerns over security in the capital.