His Majesty King Abdullah on Tuesday departed for Abu Dhabi, to participate in a trilateral summit slated for Wednesday, with Bahrain King Hamad bin Isa Al Khalifa, and Sheikh Mohamed bin Zayed Al Nahyan, the crown prince of Abu Dhabi and the deputy supreme commander of the UAE Armed Forces.
 
King Abdullah's participation in the summit comes at the invitation of Sheikh Mohamed.
 
His Royal Highness Crown Prince Al Hussein bin Abdullah II was sworn in as Regent, in the presence of Cabinet members.