A case has been filed against 200-300 unnamed students of Shahjalal University of Science and Technology (SUST) on charges of obstructing police from performing their duties and attacking them. Md Abdul Hannan, sub-inspector (SI) of Jalalabad Police Station, filed the case around 8:30 pm on Monday. Md Abu Khaleque, officer-in-charge of Jalalabad Police Station, accepted the case and instructed SI Md Asaduzzaman to investigate it. Read: Sack V-C, SUST students urge President According to the case statement, the SUST students were staging demonstrations on Sunday to press home their three-point demand, including the resignation of Jafrin Ahmed, provost of Begum Sirajunnesa Chowdhury, and confined VC Farid Uddin Ahmed to a room. The students reportedly obstructed police from performing their duties around 5.30 pm when they went there to rescue the VC. Around 200 to 300 students suddenly attacked the policemen and tried to snatch the firearms of police. They threw brickbats at the police and exploded cocktails, creating panic on the campus, according to the case statement. Later, police opened fire and exploded 21 sound grenades to bring the situation under control, it said.