Supporters of Egypt's deposed president Mohamed Morsi are demanding answers after three protesters were killed on Friday.
The women were shot dead in Mansoura after a rally calling for the reinstatement of Morsi turned violent.
Backers of the former leader call it a deliberate attack on peaceful demonstrators and some women protesters plan a march on the defence ministry on Sunday.
Al Jazeera's Nadim Baba reports from Cairo.
Source: Al Jazeera