The raid followed a demonstration by BCL on the campus Saturday night protesting arrest of Awami League president Sheikh Hasina.

During the demonstration, the BCL activists chanted slogans against the caretaker government and demanded resignation of the law adviser.

Campus sources said, joint forces led by army first entered Shaheed Habibur Rahman Hall, followed by Shah Mukdum Hall.

But they could not recover any firearm. None was arrested.

Earlier, on Saturday night, police searched for some BCL leaders and activists at their residences near the university and in other city areas but could not arrest any one.

Campus sources said, many resident students left their dormitories fearing further raid.

Some students of Shaheed Habibur Rahman Hall told this correspondent that during the raid, police asked them about BCL leaders and activists and if there was any more programme for demonstration.

Contacted, RU Proctor Enamul Haque said he was not aware about the raid.

RU BCL secretary Ayeen Uddin however protested the raid and hunt for party activists.