The Israeli army said it foiled an "infiltration" into southern Israel by Gaza militants on Thursday, shortly before a humanitarian ceasefire with Hamas was to take effect.
"This morning our forces successfully foiled a terror attack," army spokesman Lieutenant Colonel Peter Lerner told journalists in a telephone briefing.
Thirteen militants emerged from a tunnel under the southern Gaza border, and were headed towards Sufa kibbutz, a small community just over a kilometre (mile) away, when they were spotted, Lerner said.
Israel forces killed at least one of the militants in an air raid, he said, leaving the rest scurrying back towards the tunnel.
There were no details of any other deaths or injuries, and there were no casualties on the Israeli side, Lerner said.
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