| Clashes broke out as the military tried to clear protesters from Tahrir Square on 9 March. |
A leading rights group says the Egyptian army arrested, tortured and forced women to take "virginity tests" during protests earlier this month.
Amnesty International is calling on the authorities in Cairo to investigate.
It says at least 18 female protesters were arrested after army officers cleared Tahrir Square on 9 March.
It says they were then beaten, given electric shocks and strip searched.
The army denies the allegations.