Egyptian security forces have stormed Zagazig University's campus and fired tear gas to disperse students protesting in support of ousted president, Mohamed Morsi.

This comes after students gathered in large crowds at the main campus to condemn the army and renew their demand for the reinstatement of the country’s first democratically-elected president.

The angry students also blocked gates of the Faculty of Engineering to demand the release of 23 of their classmates who were arrested following on-campus clashes last week.

Witnesses say the riot police fired tear gas canisters on the protesters then proceeded to hit with batons. Some media reports say dozens of students suffered from gas inhalation.

Since the start of the academic year in September, Egyptian university campuses have witnessed a number of protests.

The developments come as demonstrations by Morsi's supporters against the government are still being held across Egypt despite the interim authorities’ efforts to widen crackdown on Morsi backers.

A large number of Egyptian Muslim Brotherhood’s officials and supporters have been held in custody by the military and police forces since the ouster of Morsi in early July.

Hundreds of supporters of the group have been killed in clashes with the army over the past few months.

Morsi is currently in prison and faces trial over involvement in the death of protesters outside the presidential palace in 2012.