The head of the World Health Organization (WHO) said on Wednesday he regrets U.S. President Donald Trump's decision to pull funding for the agency, but that now is the time for the world to unite in its fight against the new coronavirus.

WHO Director General Tedros Adhanom Ghebreyesus told a news conference that the United States "has been a long-standing and generous friend of the WHO, and we hope it will continue to be so."

Trump's move prompted condemnation from world leaders as global coronavirus infections passed the 2 million mark.