Four people, including a female journalist, have been killed in fresh clashes between security forces and anti-government protesters in Egypt.

The four were killed in Cairo on Friday when police clashed with Muslim Brotherhood supporters protesting against ex-army chief Abdel Fattah el-Sisi’s presidency bid, AFP reported.

The journalist was identified as Mayada Ashraf, who worked for privately owned Al-Dustour newspaper and freelanced for news website Masr Al Arabia. She was shot in the head while covering clashes in the northern neighborhood of Ain Shams, according to a security official.

The official said three more people were killed and 10 injured in the same violence.

On Friday, Egyptians took to the streets of various cities across the country to vent their anger at Sisi, who overthrew Egypt’s first democratically-elected president, Mohamed Morsi, nine months ago.

The anti-government demonstrators also criticized death sentences handed down to around 500 supporters of the ousted president and the Muslim Brotherhood in a case related to the killing of a single police officer in the Nile Valley city of Minya.

On Wednesday, Sisi announced his resignation to run for president.

Analysts say state institutions and media are all geared toward Sisi's candidacy, a situation which undermines the chances of a fair competition for any other candidate.

Egypt has been experiencing unrelenting violence since Morsi was ousted on July 3, 2013.

Rights groups say at least 1,400 people have been killed in the violence since the ouster of Morsi, “most of them due to excessive force used by security forces.”