Police opened fire and used tear gas to disperse the students of the Alia Madrasa during the clashes that erupted last night over theft of a mobile phone leaving at least 60 people, including several policemen, injured, police said.
The students used bombs, sticks and knives to attack each other.
The madrasa has been shut indefinitely and students have been asked to vacate their dormitories today. The two groups have clashed over the past weeks, but last night it turned "very violent," police said.
The Jamaat has two ministers in Prime Minister Khaleda Zia's BNP-led four-party alliance.