Chinese Ambassador to the United States Cui Tiankai Saturday extended his good wishes to U.S. President Donald Trump and his wife after the presidential couple tested positive for the coronavirus.

In a Twitter message, Cui wrote in both English and Chinese wishing Trump and his wife "a speedy and full recovery."

Before news of the positive tests broke, Cui on Thursday called bilateral ties with the U.S. to be brought back on the "right track" during a speech at a virtual reception and concert held to mark China's 71st National Day and the Mid-Autumn Festival.

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Cui Tiankai: China-U.S. relations must be put on the right track

He reiterated that a stable China-U.S. relationship is in the interest of both sides in another tweet late on Thursday.

Hua Chunying, spokesperson for the Chinese Foreign Ministry, had earlier wished the couple a speedy recovery.

"Saddened to learn #President and the #FirstLady of the #US tested positive. Hope they both have a speedy recovery and will be fine," Hua said on Twitter on Friday.

America's first couple tested positive for COVID-19 on Friday morning following news that Trump's close aide Hope Hicks had contracted the coronavirus. 

The U.S. president was taken to Walter Reed National Military Medical Center for treatment late Friday and the White House doctor revealed that Trump is taking Remdesivir therapy.

The virulent virus has so far claimed more than 200,000 lives in the country and plunged the U.S. economy into a recession.

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U.S. President Trump, wife Melania test positive for COVID-19

Trump admitted to Walter Reed National Military Medical Center for treatment