"We denounce the Israeli shelling of Gaza which is continuing. This is a violation of the calm," he said.However, the truce has since appeared to be holding, as no rockets were known to have been fired at Israel on Thursday morning. The IDF stated that a Code Red siren which sounded at approximately 10:00 a.m. in the Eshkol Regional Council area Thursday morning was a false alarm. An Israel Radio report stated that the Hamas delegation in Cairo had retired to Qatar to discuss options with the organizations leaders who are in the Gulf state.The apparent cease-fire came on the heels of two previous 72-hour cease-fire agreements brokered by Cairo. One of the truces expired on Friday to the sound of rocket alert sirens across Israel as Hamas fired several barrages at the country's South and one rocket at Tel Aviv. The attack came after Hamas refused a proposal to extend that cease-fire, an offer Israel accepted.A second three-day cease-fire went into effect at midnight on Saturday when several rockets were launched at Israel as an extension came into effect, according to Palestinian officials. The IDF enhanced its troop presence along the border on Wednesday and throughout the week, in preparation to again wage war on Hamas in Gaza.Reuters contributed to this report.