Quds city, September 23, SPA -- Israel dispatched several fighter jets toward its border with Syria after a Syrian aircraft disappeared from Israeli air force radar screens, Israeli military officials said Sunday, reflecting the state of heightened tensions between the two sides over a reported Israeli air strike in Syria earlier this month. The Israeli jets, which did not enter Syrian airspace, returned to their bases minutes later when it became clear the Syrian airplane had crashed, the Associated Press reported. The incident took place on Saturday, which was Yom Kippur, the holiest Jewish holiday, when Israel's air force does not send any fighter craft into the air unless absolutely necessary.