Last week, an Arab tried to cross into Israel with a large IED. Upon being discovered, he abandoned the bomb and fled into the Sinai. Because of the peace treaty with Egypt, the IDF did not pursue him, so we knew nothing about the plan.
This week, another, similar bomb was intercepted. That indicates that the Arabs insist on a major terrorist attack in southern Israel. No doubt there will be more of these attempts.
Israel refuses to hunt terrorists in the Sinai because of the Camp David treaty, which Egypt violates often by allowing the de facto militarization of the Sinai by militias and using the peninsula as launching pad for anti-Israeli activity.