Japan’s Foreign Ministry said Friday that the U.S. Embassy in Tokyo has suspended new interview appointments for student visa applicants.

Foreign Minister Takeshi Iwaya kept his tone measured as he confirmed the U.S. Embassy in Japan’s explanation. He said visa applications are still being accepted, and previously scheduled interviews are going ahead as planned. Iwaya added that the embassy described the measure as temporary.

“People with plans to travel have been expressing their concerns to us, and we’re responding with great interest,” he said. “We’ve asked the United States to provide detailed information, and we intend to stay in close contact as we work to get clarity on the situation.”

The U.S. Embassy in Tokyo declined to comment when contacted by ABC News, saying questions should be directed to State Department headquarters in Washington.

--ABC News' Anthony Trotter

The FBI is investigating mysterious texts and calls from someone reaching out to governors, members of Congress and others who have said they are White House chief of staff Susie Wiles, sources familiar with the matter told ABC News.

The calls and texts appear to use Wiles' voice but are believed to be an imposter who will on occasion ask for money, the sources said.

"The White House takes the cybersecurity of all staff very seriously, and this matter continues to be investigated," a White House official said when asked about the matter.

The story was first reported by the Wall Street Journal.

-ABC News' Luke Barr and Michelle Stoddart

President Donald Trump on Friday morning accused China of violating a trade agreement struck with the U.S. earlier this month.

“China, perhaps not surprisingly to some, HAS TOTALLY VIOLATED ITS AGREEMENT WITH US,” Trump said in a social media post.

Trump did not identify the action taken by China that had violated the agreement.

U.S. stock futures fell slightly after the social media post.

Treasury Secretary Scott Bessent, in an appearance on Fox News on Thursday night, said that trade negotiations between the United States and China are “a bit stalled” and that President Donald Trump and Chinese President Xi Jinping may need to speak to each other to move forward.

“I would say that they are a bit stalled,” Bessent said when asked about the status of the trade talks with China. “I believe that we will be having more talks with them in the next few weeks, and I believe we may at some point have a call between the President and Party Chair Xi [Jinping]."

Bessent was pressed about Trump's insistence that the talks are moving forward, but the treasury secretary brushed off the contradiction.

“I think that, given the magnitude of the talks, given the complexity that it -- this is going to require both leaders to weigh in with each other. They have a very good relationship, and I am confident that the Chinese will come to the table when President Trump makes his preferences known,” Bessent said.

Earlier, Bessent had said positive progress had been made on trade deals and that discussions are continuing, and that he is set to meet Friday with a Japanese delegation.

He also criticized the back and forth rulings on tariffs more generally, echoing the White House message.

“It seems highly inappropriate for the judiciary to weigh it in here when the Senate had the opportunity to override the president and didn't, so, in terms of separation of powers, the Senate has chosen not to exercise their powers, and the president absolutely has the right to set the trade agenda for the US,” Bessent said. “This administration is committed to fair trade, and we are striking the best deals for the American people, and anything that the courts do to get in the way both harms the American people in terms of trade and in terms of tariff revenue.”

He claimed that the legal back and forth had not changed attitudes among any trading partners, and that some “very large deals” are close.

-ABC News' Oren Oppenheim