In a statement issued on Friday, Afkham said the blasts, which have left many innocent people dead and injured, are aimed at harming Egypt’s national unity, stability and security.
She stressed the need for national consensus and understanding in order to prevent the eruption of conflict and division in Egypt.
On Friday, an al-Qaeda-inspired jihadist group claims it carried out the Friday deadly bombings that targeted Cairo police headquarters and a metro station.
"The explosion was against the oppressive and unfaithful security forces," the Ansar Beit al-Moqadas, a group based in the Sinai Peninsula, said on Twitter.
A second bomb had gone off near a metro station in the Dokki district, in the West of the capital city, killing one and wounding five police officers, a health ministry official said.
The third bomb went off in the Egyptian capital again on Friday, hitting near a police station hours after a car bomb outside police headquarters killed four people an injured more than 50 civilians, an interior ministry official said.
The third explosion, near a police station in the west Cairo Talebiya district on the main road leading to the Giza pyramids, caused no fatalities, the police general said.
The fourth Friday blast happened when a convoy of security forces was hit by a bomb planted in a busy street in Cairo. One person was killed in the bombing.