A Giza criminal court issued a preliminary death sentence to two activists supporting Egypt's ousted president Mohamed Morsi in what is known the "Ultras Rabaawy" trial on Monday.

The court have referred their decision to the country's grand mufti, the state's senior Muslim cleric, for a consultative review as required by Egyptian law.

Although the grand mufti's opinion is non-binding, Egyptian judges have traditionally aligned their final rulings to the mufti's recommendations.

The court's final verdict concerning the two defendants, along with three other defendants in the case, is scheduled for 3 October.

The prosecution has accused five people of torching the administrative prosecution building in Cairo and a mobile phone network communication tower in 6th October City.

"Ultras Rabaawy" is a pro-Morsi youth group which employs the tactics of hardcore Egyptian football fan groups known as ultras in their protests and rallies.

The court was presided over by judge Nagy Shehata who in the past few months has issued death sentences to dozens of Islamists and life sentences to pro-January 25 Revolution activists.

Morsi and hundreds of his supporters have been sentenced to death following his ouster in 2013 following mass protests against his one-year rule.