The university authorities also asked the students to vacate the dormitories by 8:00am yesterday.

Campus sources said the students confined five teachers when they went to the male dormitory for inspection on Friday night. Later, the authorities informed the matter to the local administration.

A police team, led by a magistrate, entered the hall breaking open the main gate and rescued the teachers.

The university authorities postponed all classes and examinations for indefinite period due to unavoidable reasons.

The students said five students were injured as police charged batons on them during the drive in the hall on Friday night.

The students continued agitation since June 14 demanding reduction of high fees charged by the university authorities under various heads. They observed different programmes, including processions and token hunger strikes, to realise their demand.

Vice Chancellor Dr Abul Khayer said the fees are higher here than other universities as "we provide better facilities."

He, however, said the demands will be considered after discussion with the teachers and students.

The classes for the first year students were scheduled to start yesterday. At present, about 360 students are studying in the university.