US President Donald Trump and members of his administration have bobbed along to a ceremonial sword dance as they attended a state dinner in Saudi Arabia.

Wielding a traditional sword and a giant smile, Trump was filmed swaying and bopping to the male-only dance known as the ardah.

The term ardah is said to have derived from the Arabic word for "to parade". It was employed for the dance as it was traditionally used to parade military strength, when warring tribes were preparing for battle.

The performance also involves drumming and chanting poetry, and is often used to symbolise the start of religious holidays and weddings.

On this occasion, it was used to symbolise Trump's visit to the Kingdom as he capped off his first day of his inaugural trip abroad as president.

Earlier in the evening, Trump received Saudi Arabia's highest civilian honour as King Salman placed the King Abdulaziz al Saud Collar around his neck.

Trump also signed off on a number of trade and arms deals worth as much as $350bn (£270bn).

Secretary of State Rex Tillerson and Commerce Secretary Wilbur Ross also took part in the dance, which took place outside the King Abdulaziz Historical Centre.

Trump's Chief of Staff Reince Priebus and Chief Strategist Steve Bannon also made a brief appearance but did not take part.