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A members of the Hamas security forces patrol the border area between Gaza and Egypt, in the southern Gaza Strip May 20, 2013. Egyptian police angered by the kidnapping of seven colleagues by Islamist gunmen kept a crossing into the Gaza Strip closed again for four days, stranding hundreds of Palestinian travellers, As Tunnels between Egypt and Gaza closed and border was declared as military zone. Palestinian security forces patrol around the border, witnesses said. UPI/Ismael Mohamad
