Egypt executes 7 over killing of policeman in 2013
"The prison service on Tuesday carried out the sentence of death by hanging against seven people convicted of killing Captain Ahmad Abu Douma," the security official told AFP.
Their bodies had been handed to their families, he added.
Abu Douma had been on patrol in Ismailiya, close to the Suez Canal, when he came under fire by unidentified gunmen on a motorbike and in a car, who seized his weapon.
An appeals court had in November 2018 rejected an appeal against the sentence.
Last month, authorities executed Libyan militant Abdel Rahim Al-Mismari, who was convicted for an attack south of Cairo in October 2017 that killed 16 policemen, the defence ministry said.
The lethal attack took place in Al-Wahat, about 200 kilometres south of the capital in the Western Desert, when a raid on a militant hideout was ambushed and a firefight ensued.
Mismari was captured soon after. A military court found he had masterminded the attack and sentenced him to death in 2019, while 32 co-defendants received life sentences.
"He deliberately killed in a pre-meditated manner 16 police personnel," the defence ministry said in a video outlining the charges against him.
The seven-minute clip, edited with a dramatic score, listed 11 charges against him.
Mismari was also charged with kidnapping Mohamed Alaa Al-Hayes, a policeman, who was later freed by Egypt's counter-terrorism forces.
In a 2017 interview with prominent talk show host Emad Adib, some of which was used in Saturday's defence ministry statement, a bearded Mismari appeared defiant and admitted to killing those he deemed "infidels".
He was accused of forming and joining a "terrorist" group in Libya, targeting security personnel, murder and carrying out hostile operations against vital facilities, according to the defence ministry.
The attacks largely centred on the turbulent North Sinai region, with others in the Western Desert along the porous border with Libya.
In March, Hisham Ashmawy, a former Egyptian special forces officer turned top Islamist militant, was executed over involvement in several high-profile attacks after he was extradited from Libya in 2019.
Egypt has been plagued by unrest since the 2011 overthrow of president Hosni Mubarak.
Jihadist groups particularly active in the Sinai peninsula have carried out attacks across the country, many targeting police and security forces.