SAUDI ARABIA - "Due to the circumstances in the Lebanese Republic, the kingdom asks its citizens who are visiting or residing" in the country to leave it as soon as possible. The announcement came the same day Lebanon said it believes that Saudi Arabia is holding its Prime Minister Saad Hariri and plans to work with foreign states to secure his return to the country, a top Lebanese government official told Reuters on Thursday.  Hariri resigned as prime minister on Saturday in a shock declaration read from Saudi Arabia, pitching Lebanon into deep political crisis and pushing the country back to the forefront of a regional struggle between Saudi Arabia and Iran.