The diagrams included the locations of locks and the number of guards assigned to each wing, according to Ynet.

Detailed diagrams showing various Israeli prisons were discovered inside the cells of terrorists arrested after the October 7 massacre, according to Israel Prison Service Operations Head Avihai Ben-Hamo, Israeli media reported on Sunday.

The diagrams included the locations of locks and the number of guards assigned to each wing, according to Ynet. N12 News also published a blurred photo of the diagrams.

“Last year, I showed improvised weapons seized from inmates,” Ynet quoted Ben-Hamo as saying. “Over the past year, we have found detailed diagrams of cells and wings. They marked where there is one guard and where there are two."

Ben-Hamo warned that convicted terrorists become "increasingly desperate" upon realizing they will not be released.

“We see them preparing. They will try to challenge the prison system, but we will not allow it," he was quoted as saying. "The war within the Prison Service is not over.”

Israel 'on the brink' of large-scale event

Israel Prison Service Chief Commissioner Kobi Yaakobi affirmed Ben-Hamo's words during the Knesset National Security Committee meeting on Tuesday, Ynet reported, warning that Israel is "on the brink" of a potential large-scale event within its prisons.

“For nearly two years, we have been preparing the [Israel Prison Service] for the day the prison wings ignite,” Yaakobi was quoted by Ynet as saying. “If there is a sense that the war of revival is being fought at low intensity inside the prisons, I say with certainty that we are approaching a serious incident."