Warning sirens were launched in Israeli settlements at the vicinity of Gaza Strip, after firing a rocket at Eshkol area, southern Israel, from Sinai on Monday, with no casualties, spokesperson of Israeli government, Ofir Gendelman stated through his Facebook official page. The rocket firing came moments after Israel closed its southern border with Egypt for fear of an imminent attack. The rocket hit a greenhouse near the Egypt and Gaza borders. Israeli citizens will not be allowed to cross into Sinai, after closing Taba crossing border with Egypt until April 18, but will be allowed to return to Israel, in light of information that Islamic State militants could target the safety of Israelis in Sinai. Israeli government has warned its nationals against traveling to the Sinai Peninsula, urging all Israeli tourists in the war-torn governorate to return home immediately on Sunday. The statement said, the terrorist attacks targeted Egyptian churches reflect "capabilities" of the Islamic State (IS) organization, which could threaten Israeli citizens during their visit to Egypt. IS has claimed responsibility for the churches attacks occurred in Alexandria and Tanta, left nearly 50 killed and injured over 100 others. Prime Minister Benjamin Netanyahu's office released a statement, "Israel expresses condolences to the victims' families in Egypt and wishes quick recovery for the injured. The world must unite and fight terrorism everywhere."