DHAKA, Bangladesh (AP) _ A university in the port city of Chittagong was closed indefinitely Saturday after a clash between rival student groups, police said. More than 130 people were reportedly injured.

The clashes broke out when the university reopened after a recess and supporters of the Islamic Students' Organization attacked students attending classes, said Anupan Sen, a former president of the university teachers association. The Islamic students had called for an indefinite strike at the school.

The group has demanded the removal of the university's vice chancellor. It members say he has not been sympathetic to them in university affairs.

More than 100 students and at least 30 teachers were injured in the two- hour confrontation between the Islamic Students' Organization and the All Party Students Action Committee, said Sen.

Bricks and homemade bombs were used in the clash, police and witnesses said. The Islamic group claimed three members were wounded by bullets.

The organization is the students' wing of the Jamaat-e-Islami, a pro- Pakistan fundamentalist group opposed to the liberation of Bangladesh from Pakistan in 1971.

A large contingent of police was deployed inside the Chittagong University, about 135 miles southeast of Dhaka.