The Jordanian government on Monday expelled Syria's ambassador to Amman, Bahjat Suleiman, demanding he leave within 24 hours.
More than 60,000 illegal workers have now been deported from Saudi Arabia in the past three weeks, double the figure previously reported.
Jordan has threatened to expel Syria's ambassador after he warned the kingdom that Syrian missiles could be used against Patriot batteries due to be deployed soon along their border.