US President Donald Trump has signed an executive order to begin the process of withdrawing the US from the World Health Organization (WHO). "Oooh, that's a big one," the newly inaugurated US president said as he approved the document after arriving back at the White House.

The United States will exit the World Health Organization, President Donald Trump said on Monday, saying the global health agency had mishandled the COVID-19 pandemic and other international health crises.

Among President Trump’s flurry of executive orders was one reviving a pandemic-era pledge: to withdraw the U.S. from the World Health Organization. Trump signed an order in the Oval Office to withdraw the U.

The newly inaugurated president has announced his intention to terminate U.S. membership in the U.N.'s global health agency.