Palestine Press Agency quotes Asharq al-Awsat is reporting that Hamas arrested 10 members of Islamic Jihad's Al Quds Brigades, to stop them launching rockets into Israel.
They also arrested three members of small Salafist groups for the same reason.
The article says that Hamas has been stepping up their patrols near the border and are searching for smuggled rockets.
The reason given is that Hamas does not want to give Israel an excuse for an invasion.
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