Egyptian police said on Monday that explosives found during a Sunday raid on an apartment in Giza's Kerdasa were the same type used in a bomb that killed eight policemen and three civilians during another raid in Haram on Thursday.
The interior ministry said the Kerdasa raid was conducted after authorities received a tip that the apartment was being used to store explosives.
Mohamed Abdel-Hamid Abdel-Aziz, who authorities say was a member of the banned Muslim Brotherhood, was killed during the raid in a shootout with police, who say they were met with gunfire upon their arrival.
"The interior ministry will continue to chase the members of the [Muslim Brotherhood] terrorist movement and dry up the logistic support given to its members…without upsetting stability and security in the country," the ministry said.
On Friday, two militant groups – the ISIS-affiliated Ansar Beit Al-Maqdis and a group called Revolutionary Punishment – each claimed responsibility for the Haram bombing, which took place days before the fifth anniversary of the 25 January revolution.
Authorities have not commented on the identity of those behind the Haram bombing.
In 2013, fierce clashes between security forces and Islamists took place in Kerdasa in the aftermath of the ouster of Islamist president Mohamed Morsi.
In recent months, security forces have carried out dozens of raids on apartments where they say suspected or fugitive Islamists militants were either hiding or preparing for “terrorist operations.”
These raids have often ended with suspects being killed by police, who say they were met with gunfire upon arrival at the hideouts.