Two people were killed and 24 injured during political violence on Thursday, according to a health ministry official.
The Brotherhood-led National Alliance to Support Legitimacy had declared the 3 July anniversary of Mohamed Morsi's ouster a "day of rage" and called for protests across Egypt.
There were clashes between security forces and Morsi's supporters in various parts of the country.
Mohamed Sultan, the head of the health ministry's emergency care department told MENA agency that a police conscript was killed when Morsi supporters hurled Molotov cocktails at a police checkpoint in the southern Cairo district of Helwan.
Another conscript was injured in the attack.
Security officials say that Mohamed Morsi supporters torched two police checkpoints in Helwan on Thursday, Al-Ahram's Arabic news website reported.
Ali El-Demerdash, the head of security in Cairo governorate, has ordered the formation of a committee to find those responsible.
According to the head of Helwan's prosecution office, Wael Ghanem, hundreds of Morsi supporters took part in the protest.
Social networks meanwhile circulated pictures of Heba Gamal, 18, who was reportedly killed by birdshots while taking part in a pro-Morsi protest at Alexandria’s El-Raml district on Thursday.
Also in Alexandria, a bomb exploded on a local train on Thursday night, injuring nine people, including a child who is in a “critical condition” according to a statement by Egypt’s railway authority.
The National Alliance to Support Legitimacy and the Muslim Brotherhood denied any links with the bombing.
According to Sultan, clashes in Fayoum in central Egypt led to the injury of nine people, while four others were wounded following clashes in front of a police station in the southern city of Aswan.
In a press statement on Thursday, the interior ministry said that security forces had arrested 157 pro-Morsi protesters in the governorates of Cairo, Giza, Alexandria, Minya, Fayoum, Damietta, Menoufiya, Assuit and Daqahliya.
The statement mentioned that Molotov cocktails, fireworks, and in one case a home-made gun, were found in the possession of the "rioters.”