Sinai - Israel on Monday urged citizens vacationing in Egypt's Sinai peninsula to leave immediately, saying the threat of attacks inspired by Islamic State and other jihadi groups was high. The advisory was issued ahead of the Passover holiday, when thousands of Israelis cross the land border with Egypt to visit resorts and beaches on the Sinai's Red Sea coast, Reuters News Agency reported. Israel's Anti-Terrorism Directorate said its "Level 1" alert related to a "very high concrete threat". "Islamic State and those inspired by it are at the forefront of global jihadi groups that are highly motivated to carry out attacks during this period," the directorate wrote.