Israel's domestic security agency, Shin Bet, has announced that it thwarted a plot by Hezbollah to assassinate a former senior defence official. The agency seized an explosive device attached to a remote detonation system that Hezbollah had planned to operate from Lebanon. This attempted attack is similar to a plot foiled in Tel Aviv a year ago. Israel and Iran-backed Hezbollah have been engaged in escalating violence across the Lebanese border since October.