Egyptian Interim President Adly Mansour on Friday vowed to root out terrorism and press ahead with the country's transitional roadmap, hours after three bombings rocked the capital, killing at least five people.
In a statement, the president pledged to "severely punish" those involved in "planning, financing, inciting, participating in or executing" such attacks, saying that tampering with state security is a "red line."
Three separate bombings, apparently targeting police, took place in Cairo and the neighbouring governorate of Giza early on Friday. The first and largest explosion took place when a car exploded outside the headquarters of the Cairo police, killing four people.
Hours after the first blast, one of the biggest in the capital in recent months, two other explosions took place.
An improvised bomb killed one policeman and wounded nine others in Giza's Dokki district and a third bomb went off near a police station, also in Giza, leaving no casualties
Egypt had quashed an Islamist insurgency that raged in the 1990s and "would relentlessly rout [terrorism] and root its culprits out," the Egyptian presidency said.
Security forces will take necessary exceptional measures to protect the nation and the souls of Egyptians, the statement added.
"Such terrorist attacks will only unite the will of Egyptians to move forward towards achieving the goals of the 25 January and the 30 revolution … and to carry out Egyptians' roadmap for the future."
Mohamed Morsi was ousted from the presidency in July after mass protests against his rule on 30 June. Transitional authorities have repeatedly accused Morsi’s Brotherhood of links with ongoing terrorist attacks since Morsi’s removal, although the Brotherhood have denied the claims.