Four people were killed in clashes between supporters and opponents of Egypt's ousted Islamist president Muhammad Morsi on July 22.
Security and medical officials said two people died in clashes in Qalyub, north of Cairo, and a third was killed when he fell under the wheels of a train as he tried to flee.
A fourth person died in hospital after being hit by gunfire during clashes near Cairo's central Tahrir Square.
At least 26 people were injured in the Cairo violence.
Meanwhile, Morsi's family said on July 22 that it would take legal action against the army, which has held the deposed president at an undisclosed military facility since his ouster on July 3.
The army says he is being held for his own safety.
But Morsi's son, Osama, said in Cairo that there "is no legal or constitutional basis...for detaining someone not accused of a crime for his own safety."
Based on reporting by Reuters and AFP