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 Prison Service chief Kobi Yaakobi attends a National Security committee meeting at the Knesset, the Israeli parliament on December 16, 2025. (credit: YONATAN SINDEL/FLASH90)