Some 11 buses parked in on the premises of Bangabandhu Sheikh Mujib Medical University (BSMMU) hospital in Dhakawere set ablaze on Sunday morning during clashes between protesters and Awami League activists.
However, no casualties were reported from the incident.
Meanwhile, the Anti-Discrimination Student Movement, which waged the protests, claimed that it was not responsible for the arson attack.
Witnesses said that several motorcycles and other vehicles which were parked along the road in front of the hospital were set on fire.
Protesters alleged that those were set ablaze by ruling party activists.
Efforts to control the fire were hindered as the vehicles of Fire Service and Civil Defence headquarters` control room was unable to reach the location promptly due to road blockades.
Witnesses said when some Awami League and Chhatra League activists tried to obstruct protesters near the hospital the protesters chased them.