WASHINGTON: US President Donald Trump signalled a further deterioration of his relationship with China over the coronavirus outbreak, saying he has no interest in speaking to President Xi Jinping right now and going so far as to suggest he could even cut ties with the world's second largest economy.

In an interview with Fox Business Network broadcast on Thursday, Trump said he was very disappointed with China's failure to contain the disease and that the pandemic had cast a pall over his January trade deal with Beijing, which he has previously hailed as a major achievement.

"They should have never let this happen," Trump said. "So I make a great trade deal and now I say this doesn't feel the same to me. The ink was barely dry and the plague came over. And it doesn't feel the same to me."

Trump's pique extended to Xi, with whom the US president has said repeatedly he has a good relationship.

"But I just – right now I don't want to speak to him," Trump said in the interview, which was taped on Wednesday.

Trump was asked about a Republican senator's suggestion that US visas be denied to Chinese students applying to study in fields related to national security, such as quantum computing and artificial intelligence.

"There are many things we could do. We could do things. We could cut off the whole relationship," he replied.

"Now, if you did, what would happen? You'd save $500 billion," Trump said, referring to estimated US annual imports from China, which he often refers to as lost money.

Chinese foreign ministry spokesman Zhao Lijian told reporters in Beijing on Friday that maintaining a steady bilateral relationship served the interests of both peoples and would be beneficial for world peace and stability.

"Both China and the US should now be cooperating more on fighting the virus together, to cure patients and resume economic production, but this requires the US to want to work with us on this," Zhao said.

Trump's remarks drew ridicule from Hu Xijin, editor in chief of China's influential Global Times tabloid, who referred to the president's much-criticized comments last month about how COVID-19, the disease caused by the coronavirus, might be treated.

"This president once suggested COVID-19 patients inject disinfectants," Hu said on Twitter. "Remember this and you won't be surprised when he said he could cut off the whole relationship with China."

CONCERNED, REVIEWING OPTIONS

US Treasury Secretary Steven Mnuchin told Fox Business Network China needed to provide a lot more information about the coronavirus and Trump was reviewing his options.

"The president is concerned. He's reviewing all his options. Obviously, we're very concerned about the impact of this virus on the economy, on American jobs, the health of the American public and the president is going to do everything to protect the economy and protect American workers," Mnuchin said.

"It's a difficult and complex matter and the president has made very clear, he wants more information. They didn't let us in, they didn't let us understand what was going on."

Trump and his Republican backers have accused Beijing of failing to alert the world to the severity and scope of the coronavirus outbreak and of withholding data about the earliest cases. The pandemic has sparked a sharp global recession and threatened Trump's November re-election chances.

The United States has been hardest hit by the pandemic, according to official data.

China insists it has been transparent, and, amid increasingly bitter exchanges, both sides have questioned the future of the trade deal.

Opponents of Trump have said that while China has much to answer for over the outbreak, he appears to be seeking to deflect attention from criticism over his response to the crisis.

Scott Kennedy of Washington's Center for Strategic and International Studies think tank called Trump's remarks "dangerous bravado."

"Avoiding communication is not an effective strategy for solving a crisis that requires global cooperation. And cutting off the economic relationship would badly damage the American economy," he said.

Michael Pillsbury, a China analyst who has worked as an outside adviser to Trump, told Reuters he believed the president was concerned that China not only wanted to re-negotiate the Phase 1 deal, but also had not been meeting goals in purchasing from United States.

He said that according to figures cited by the China Daily, China's purchases of US products in the first four months of this year were 3% less than during the same period last year. "It's not good news for reducing the trade deficit or helping our economy recover from the coronavirus crisis," he said.

China took some additional steps towards the Phase 1 goals on Thursday, buying US soybean oil for the first time in nearly two years and issued customs notices allowing imports of US barley and blueberries.

An executive from Chinese state agriculture trading house COFCO said China was set to speed up purchases of US farm goods to implement the Phase 1 deal.

While US intelligence agencies have said the coronavirus does not appear manmade or genetically modified, Trump said in his interview that China should have stopped it at its source.

"Whether it came from the lab or came from the bats, it all came from China, and they should have stopped it," he said.

"It got out of control."