President Donald Trump on Friday held his first press conference with a foreign leader since he took office.

The president gave joint remarks at the White House with British Prime Minister Theresa May after a meeting between the pair. In the press conference, they addressed the use of torture, sanctions on Russia and U.S.-Mexico relations, among other issues.

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May, a member of the Conservative Party who took power after Britain's vote to leave the European Union, discussed trade with Trump. A closer working relationship between the countries could give May leverage as Britain negotiates to leave the EU.

In a Thursday address to Republican leaders in Philadelphia, May echoed Trump in saying that some international organizations could use reform. However, she pushed back on some of Trump's public statements, warning against trusting Russia, backing out of international alliances and using torture.

Trump will also speak to the leaders of France, Germany and Russia this weekend.

— NBC News and Reuters contributed to this report