Gaza (CNN) -- Israel late Saturday authorized an extension of the humanitarian cease-fire in Gaza for another 24 hours at the request of the United Nations, Israeli officials told CNN.
But Hamas rejected a cease-fire extension, Hamas spokesman Sami Abu Zuhri said.
"Any humanitarian cease-fire that does not include the withdrawal of the occupation soldiers from Gaza borders and allowing citizens to return to their homes and evacuate casualties is unacceptable," he said.
Prior to Hamas' rejection, chief Palestinian negotiator Saeb Erakat also expressed concerns about occupation.
"I'm very, very worried," Erakat told CNN. "We are witnessing the gradual reoccupation of Gaza."
More, plus video: http://edition.cnn.com/2014/07/26/world/meast/mideast-crisis/index.html