Cairo-Six police officers were killed Friday morning in an explosion believed to the be result of an IED stationed next to two security roadblocks in al-Haram street west Cairo, a main road leading to Egypt’s famed Giza pyramids, according to paramedical and security sources in Egypt.

A recently emerged militant group called the Hasm movement claimed responsibility for the attack. The group has said it seeks retribution for the military overthrow of the Morsi government and the violent crackdown that followed.

Militants have frequently targeted Egyptian security forces since the military ousted the Islamist president, Mohamed Morsi, in 2013 and subsequently killed hundreds of his backers.

In a statement, the Hasm movement said “the blood of the martyrs will not go in vain, but rather this blood is the fuel to our revolution and a light that leads our resistance.”

The Ministry of Interior said that deaths included two officers, one non-commissioned officer and three conscripts. Another three conscripts were wounded in the bombing.

The Hasm Movement, which has links to the now-banned Muslim Brotherhood, has claimed responsibility for several attacks around Cairo in recent months, including the assassination of a police officer and the attempted killing of a senior prosecutor.

The explosion came a day after one of the former president’s sons, Osama Morsi, was arrested at his home in the Nile Delta in connection with a 2013 Cairo sit-in protesting his father’s ouster.

Following the explosion, Interior Minister Magdi Abdel-Ghaffar assigned a team to investigate the attack, local news reports said.

Commenting on the attack, Egyptian Prime Minister Sherif Ismail offered condolences to the families of the victims.

“This proves that terrorism has no religion,” the prime minister said in a statement.

Ismail also hailed the sacrifices made by policemen alongside with Armed Forces troops to restore security and safety.