CAIRO: Clashes between Egyptian security forces and protesters left one person dead in a province southwest of Cairo on Friday while two home-made bombs targeting policemen wounded six people in a bridge in the capital, officials said.

The explosives were denoted near a police checkpoint in Giza, on the outskirts of Cairo, wounding six people, the government and security sources said. There was no immediate claim of responsibility for the blasts.

The attack shattered a tense calm in Cairo after a spate of bombings on Jan. 24 killed six policemen, in an escalation of a militant campaign following the overthrow of President Muhammad Mursi.

The Interior Ministry said two small bombs exploded near policemen stationed on a bridge near central Cairo. At least six were wounded in the attack, the Health Ministry said.

Police cordoned off the scene, where a lightly damaged police truck appeared to have borne the brunt of the blast. State television reported that the attack targeted a checkpoint set up to counter a scheduled protest by Mursi’s supporters, who had called for rallies later on Friday.

Militant attacks on police and soldiers have killed scores, mostly in the restive Sinai Peninsula, since Morsi’s overthrow by the military on July 3.

Sinai-based jihadists have also claimed responsibility for attacks targeting police in Cairo and elsewhere.

An Al-Qaeda-inspired group based in the Sinai said it carried out a car bombing outside Cairo police headquarters on January 24 that killed four people. Two more policemen were killed in three additional bombings in the capital that day.

A Sisi presidency would be opposed by Mursi’s Muslim Brotherhood, which the government has declared a terrorist group. It has launched a security crackdown against the movement, which rose to power after the 2011 uprising that toppled veteran leader Hosni Mubarak.

The Brotherhood denies any links to militants who have carried out attacks, including bombings in Cairo and the killing of an Interior Ministry official.