Egyptian President Mohamed Morsi expressed his condolences on Monday for the death of Mohamed Mahmoud Street protester Gaber Salah and Islam Massoud. The latter was reportedly a Muslim Brotherhood member who was killed Sunday night in the Nile Delta governorate of Damanhour.

“The presidency mourns two of the nation’s finest young men – Gaber Salah and Islam Massoud – who were martyred during the latest events,” the presidency said in a Monday statement.

President Morsi, according to the statement, has ordered Egypt’s prosecutor-general to present results of ongoing investigations into clashes seen in Egypt over the past week.

Salah, a member of the 6 April Youth Movement, was shot in the head and chest on 20 November during police-protester clashes on Cairo’s Mohamed Mahmoud Street. He succumbed to his injuries on Sunday.

Anti-Morsi protesters in Tahrir Square have set up a stage in his honour, while a funeral was held for him at Omar Makram Mosque adjacent to the square.

Islam Massoud, a 15-year-old high school student, was also killed late Sunday night in Damanhour, where anti-Brotherhood activists – who oppose the president’s constitutional decrees, by which he has expanded his powers – attacked the offices of the Muslim Brotherhood’s Freedom and Justice Party.

Opposition forces denounced the killing of Massoud and Salah, holding the country’s rulers responsible for their deaths.