They also said a police officer took them to a side street and started shooting at them, killing seven and wounding another five.
Prosecutors are investigating police violence during the demonstrations in response to 15 notifications submitted by the families of victims.
They are also investigating the looting that took place in Cairo after the police withdrew from the city’s streets on 28 January.
Police officers, for their part, denied having received orders to fire live ammunition at the protesters.
Prosecutors said they have not yet determined to the extent to which the former Interior Minister and his assistants were responsible for the violence that took place.
Translated from the Arabic Edition.