US President Donald Trump, center left, walks with Saudi King Salman, center right, during a welcome ceremony at the Royal Terminal of King Khalid International Airport, Saturday, May 20, 2017, in Riyadh.

:: A memorandum of understanding (MoU) has been signed on Sunday between the United States and the six-heads of the Gulf Cooperation Council (GCC) in the Saudi capital, Al Arabiya News Channel reported.

The signing of the MoU to curb terrorism financing took place during the Gulf-US summit in Riyadh.

US Secretary of State Rex Tillerson exchanged the MoU on countering the financing of terrorism with Saudi Crown Prince Mohammed bin Naif bin Abdulaziz Al Saud.

President Donald Trump is on his second-day “historic” visit to Saudi. Trump made Saudi as his first foreign trip as US president.

Trump is also scheduled to give his a speech on terrorism in a bid to appeal to Muslims worldwide during the Arab-Islamic-American summit.

The GCC includes Bahrain, Kuwait, Oman, Qatar, Saudi and UAE.