"Eighty-seven Gazans on Monday morning headed to Nafha Prison in southern Israel through the Erez border crossing to visit 48 of their family members," Red Cross spokeswoman Suhair Zaqout told The Anadolu Agency.
"Among the 87 Palestinians are 13 children – aged ten to 14 – who will be seeing their fathers for the first time after Israel raised the maximum age for visits by sons to 14," Zaqout said.
Zaqout added: "The Red Cross is in constant dialogue with Israeli authorities to improve the visiting conditions for Palestinians visiting detained family members."
Israeli authorities allow Gazans to visit imprisoned family members every Monday, but it closes the Erez border crossing during Jewish holidays or if there is tension between Palestinian factions and Israel.
Israel strictly limits the number of children allowed to visit their detained fathers. They are subject to numerous security restrictions and typically must be below ten years of age.
Zaqout, however, said that Israeli authorities had raised the age limit from ten to 14.
Some 7,000 Palestinians are currently held in Israeli prisons, roughly 500 of whom hail from the blockaded Gaza Strip, according to official Palestinian figures.