Hamas security forces announced on Tuesday that during raids over the past week they had captured five Gaza residents accused of assisting Israel in its anti-terror operations.
Those accused of helping Israel combat Palestinian terrorism will be dealt with severely, warned Anwar al-Baradawi, head of Hamas' campaign to round up "collaborators."
"We will strike without mercy anyone who tries to compromise the homeland's security and public safety," al-Baradawi told reporters.
Hamas is giving local Palestinians who have helped Israel until July 10 to voluntarily turn themselves in for reduced sentences.
Two Gazans were executed in April after being accused by Hamas of assisting Israeli security forces.
The Palestinian Authority based in the so-called "West Bank," despite being labeled "moderate" by the international community, also regularly executes local Palestinians for aiding Israel in its fight against terror.
The practice of arresting, executing or otherwise punishing Palestinians who help Israel violates the spirit of the peace agreements signed with the Jewish state, which obligate all Palestinians to root out anti-Jewish terrorism from their society.