RIYADH, May 20 (Reuters) - The United States on Saturday announced military deals worth nearly $110 billion, during a visit by President Donald Trump to Saudi Arabia.

A White House official said Trump and Secretary of State Rex Tillerson would attend the signing of a memorandum of intent on a package of defence equipment and services to bolster the security of the kingdom and the Gulf region in the face of Iranian threats.

"This package demonstrates, in the clearest terms possible, the United States' commitment to our partnership with Saudi Arabia and our Gulf partners, while also expanding opportunities for American companies in the region, and supporting tens of thousands of new jobs in the U.S. defense industrial base," a statement said.

(Reporting by Jeff Mason; writing by Sami Aboudi; editing by Andrew Roche) ((Sami.Aboudi@thomsonreuters.com; +97143918301;))