Nearly 30 students have been wounded in clashes between supporters and opponents of Egypt’s ousted President Mohamed Morsi at three universities.

According to Egyptian state media and security sources, fighting between groups for and against Morsi broke out on Sunday.

At least 12 students were wounded in clashes at Cairo's Ain Shams University, security sources said.

The state news agency reported that 15 people were injured when rival students at Zagazig University fought.

Meanwhile, state-owned newspaper Al Ahram said that unknown gunmen shot at students marching and chanting anti-military slogans in the city of Zagazig which is located in northeast of Cairo.

Sources also said that clashes at a university in the Nile Delta city of Tanta left two people wounded.

Egyptian students have held several pro-Morsi demonstrations across the country since the start of the new academic year on September 21, demanding his reinstatement.

On September 22, more than 10 students were injured after supporters and opponents of Morsi clashed at Zagazig University.

On September 25, similar clashes erupted between pro-Morsi students and those supporting the military-installed government at Zagazig and Alexandria universities. Several people were wounded in the confrontations.

Morsi, who was Egypt's first democratically elected president, was ousted by the army after one year in office on July 3. The move sparked nationwide protests, which lasted for weeks.

Following his ouster, Egypt’s army chief Abdel Fattah al-Sisi announced that Morsi, a leading former member of the Muslim Brotherhood, was no longer in office and declared that the head of the Supreme Constitutional Court, Adly Mahmoud Mansour, had been appointed as the new interim president of Egypt. The army also suspended the constitution.

Hundreds of protesters have been killed in violent crackdown on backers of Morsi by security forces.