Saudi Arabia and the United Arab Emirates (UAE) have looked inseparable on the world stage, working together to project power in the Middle East and beyond, and courting U.S. President Donald Trump to counter common foe Iran.

The Al-Wefaq National Islamic Society condemned the executions carried out by the Saudi authorities and considered them "a crime represented a major earthquake in the entire region."

Iraqi Prime Minister Adel Abdul Mahdi made his first visit to Saudi Arabia since taking office six months ago, meeting King Salman during the stop on a regional tour that has also seen visits to Cairo and Tehran in recent weeks.

Saudi King Salman bin Abdulaziz Al Saud appointed princess Rima bint Bandar bin Sultan as the new ambassador of the kingdom to the United States with the rank of minister. She is the first woman to hold the post.

Bahrain's King Hamad bin Isa Al Khalifa arrived in the Saudi capital Riyadh for a meeting with Saudi King Salman bin Abdulaziz Al Saud on bilateral relations as well as regional and international developments, reported the official Bahrain News Agency (BNA).