Prominent Egyptian human rights groups have condemned the continued use of sexual torture under the rule of President Morsi.

"The faces are different, whether Mubarak, Supreme Council of the Armed Forces (SCAF) or Muslim Brotherhood, but the regime is still repressive and uses torture in its worst forms, such as beatings and sexual assaults," Al-Nadeem Center, Egyptian Initiative for Personal Rights (EIPR) and Mosireen Media Cooperative said in a joint statement on Monday.

The statement says torture generally and sexual torture specifically continues to be common under the rule of Mohamed Morsi's Muslim Brotherhood, as it was under the governments of Hosni Mubarak and the SCAF.

"Emad El-Kebeer and others under Mubarak, Amr Rashad and others under SCAF, Ayman Mehana and others under the Brotherhood. From the sexual harassment of women protesters in 2005, to 'virginity tests' under SCAF [in 2011], to organised sexual harassment in Tahrir Square during Muslim Brotherhood rule, there is one common weapon: sexual torture," the statement said.

The aim of sexual torture is to humiliate and terrorise people to stop them protesting on the streets, the statement added.

Sexual torture does not differentiate between old and young or even children. It happens everywhere, including in prisons and court buildings, the statement said.

For example, Ahmed Taha, a 17-year-old student, was allegedly sexually assaulted while being tortured at the Supreme Court in 2012.

El-Nadeem's Facebook page contains video testimonies of sexual torture victims under Hosni Mubarak, SCAF and Mohamed Morsi.