U.S. President Joe Biden and British Prime Minister Rishi Sunak said Thursday their countries would partner on advanced technologies, clean energy and critical minerals as they sought to strengthen a historical security alliance.

Biden and Sunak signed the "Atlantic Declaration," which Sunak described as a first-of-its-kind economic partnership on artificial intelligence and other economic and commercial relations, as the British leader made an official visit to the White House. 

"The first agreements under the Atlantic Declaration include new commitments on supporting one another's critical supply chains, developing new, clean technologies and removing barriers to the uninterrupted exchange of goods and services between our economies," Sunak's office said in a statement.

(With input from Reuters)

(Cover: U.S. President Joe Biden (R) and British Prime Minister Rishi Sunak shake hands at the conclusion of a meeting in the Oval Office of the White House in Washington, June 8, 2023. /CFP)