A bus of Esha Paribahan was set on fire by unidentified people in the Oxygen Mor area of Chittagong late on Sunday during a 48-hour countrywide blockade enforced by the BNP, Jamaat and like-minded opposition parties.
The incident happened around 11pm, said Ferdous Jahan, officer-in-charge (OC) of Bayazid Bostami police station.
On receiving the information, two firefighting units rushed to the spot and extinguished the blaze, he added.
No casualties were reported.
A case will be filed in this connection, said the OC.