Hamas published a video showing the street execution of eight blindfolded and kneeling suspects, branding them "collaborators and outlaws."

Hamas tightened its grip on Gaza's ruined cities Tuesday, launching a crackdown and executing alleged collaborators, even as US President Donald Trump vowed to disarm the group.

The Israeli military said the remains of four more hostages held in Gaza had been brought into Israel, a day after Hamas handed over the bodies of four other captives and released the last 20 surviving hostages.

Hamas published a video on its official channel showing the street execution of eight blindfolded and kneeling suspects, branding them "collaborators and outlaws."

The footage, apparently from Monday evening, emerged as armed clashes were underway between Hamas's various security units and armed Palestinian clans in parts of the territory, on the fifth day of a US-brokered truce between Hamas and Israel.  

In the north of the territory, as Israeli forces withdrew from Gaza City, the Hamas government's black-masked armed police have resumed street patrols.

When busloads of prisoners freed from Israeli jails arrived in Gaza on Monday, fighters from Hamas's Ezzedine al-Qassam Brigades provided crowd control.

Meanwhile, a Hamas security unit has been conducting operations against armed clans and gangs, some alleged to have Israeli backing.

"Intense clashes broke out -- and are still ongoing at the moment -- as part of efforts to eliminate collaborators," said witness Yahya, who asked not to be named in full for fear of retribution.

Explosions And Arrests 

Another Gaza resident, Mohammed, told AFP: "For long hours this morning there were heavy clashes between Hamas security forces and members of the Hilles family."

The fighting was in Shujaiya, in the east of Gaza City, close to the so-called Yellow Line, behind which Israeli units still hold roughly half of Gaza.

"We heard intense gunfire and explosions, and the security forces arrested some of them. We support this," Mohammed said, also asking not to be named in full.

A Palestinian security source in Gaza told AFP that Hamas's security body, a recently established unit whose name translates as "Deterrence Force", was conducting "ongoing field operations to ensure security and stability".

In the north of the territory, as Israeli forces withdrew from Gaza City, the Hamas government's black-masked armed police have resumed street patrols.

When busloads of prisoners freed from Israeli jails arrived in Gaza on Monday, fighters from Hamas's Ezzedine al-Qassam Brigades provided crowd control.

Meanwhile, a Hamas security unit has been conducting operations against armed clans and gangs, some alleged to have Israeli backing.

"Intense clashes broke out -- and are still ongoing at the moment -- as part of efforts to eliminate collaborators," said witness Yahya, who asked not to be named in full for fear of retribution.

Explosions And Arrests 

Another Gaza resident, Mohammed, told AFP: "For long hours this morning there were heavy clashes between Hamas security forces and members of the Hilles family."

The fighting was in Shujaiya, in the east of Gaza City, close to the so-called Yellow Line, behind which Israeli units still hold roughly half of Gaza.

"We heard intense gunfire and explosions, and the security forces arrested some of them. We support this," Mohammed said, also asking not to be named in full.

A Palestinian security source in Gaza told AFP that Hamas's security body, a recently established unit whose name translates as "Deterrence Force", was conducting "ongoing field operations to ensure security and stability".

Later, the Families Forum, which campaigns for the release of the hostages, identified the two others as Yossi Sharabi and Daniel Peretz, an officer in the Israeli army.

"Now we can finally bring closure to the nightmare that began over two years ago, and give Yossi the dignified and loving burial he deserves," his wife Nira Sharabi was quoted as saying by the forum.

In Tel Aviv, people gathered to celebrate the liberation of the living hostages and demand the return of the others' remains.

"I don't know what to feel because I didn't think (we'd) reach this day where all the living hostages will return," demonstrator Barak Cohen told AFP.

"But still I see great difficulties in returning the remaining dead hostages," he said.