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Photo: Evelyn Hockstein/Contributor

Vice President Kamala Harris' Tuesday flight from Singapore to Vietnam was delayed roughly three hours due to a "recent possibly anomalous health incident" in Hanoi, per a statement from the U.S. Embassy in Vietnam.

Why it matters: That phrasing is how the U.S. government typically refers to the mysterious symptoms associated with Havana syndrome that has sickened hundreds of U.S. officials in recent years.

  • As many as 200 Americans who worked in overseas posts have said they experienced symptoms consistent with "Havana Syndrome," which has been used to describe mysterious brain injuries suffered by embassy staff.

The big picture: The cause of "Havana Syndrome" remains unknown.

  • Secretary of State Antony Blinken told NBC News in early August that his department still lacks answers for the cause of and treatments for unexplained health incidents that have affected U.S. diplomats working in multiple countries.

What they're saying: "Earlier this evening, the Vice President's traveling delegation was delayed from departing Singapore because the Vice President's office was made aware of a report of a recent possible anomalous health incident in Hanoi, Vietnam. After careful assessment, the decision was made to continue with the Vice President's trip," Rachael Chen, spokesperson for the U.S. embassy in Hanoi, said a statement.

  • Onboard Air Force Two, Harris' chief spokesperson Symone Sanders said the vice president is "well, all is fine and looking forward to meetings in Hanoi tomorrow." Later she said the delay had "nothing to do with the vice president's health," per a pool report.

"We, of course, take any reported incident of Havana syndrome seriously,” White House press secretary Jen Psaki said. “This is not a confirmed case at this point in time."

Go deeper: "Havana syndrome" among U.S. diplomats in China and Cuba likely caused by microwave energy

Go deeper

Harris makes surprise visit at Howard University football game

Vice President Kamala Harris tosses the coin at Howard University-Hampton University football game at Audi Field in Washington, D.C., on Sept. 18. Photo: Olivier Douliery/AFP via Getty Images

Vice President Kamala Harris on Saturday made a surprise visit to Audi Field, where she led the coin toss between Howard University and Hampton University for the inaugural "Truth and Service Classic" football game.

The big picture: Harris is the first graduate of a historically Black college or university (HBCU) to enter the White House, Axios' Russell Contreras reports.

8 mins ago - World

Biden's ambassador nominee: "China is not an Olympian power"

Nick Burns testifying before the Senate Foreign Relations Committee. Photo: Sarah Silbiger/Bloomberg via Getty Images

President Biden's nominee to serve as ambassador to China delivered a stark assessment of the challenges the U.S. faces in confronting Beijing, but stressed that the rising superpower is "not all-powerful" and the West retains "substantial" advantages.

The big picture: Nicholas Burns, a retired career diplomat and former U.S. ambassador to NATO, used his confirmation hearing Wednesday to echo the growing bipartisan consensus that China poses "the greatest threat to the security of our country and the democratic world" in the 21st century.

Scoop: U.S. and Israel to form team to solve consulate dispute

Secretary of State Antony Blinken (left) and Israeli Foreign Minister Yair Lapid (right) meet in Washington. Photo: Andrew Harnik/Pool/AFP via Getty Images

The U.S. and Israel are planning to form a joint team to hold discreet negotiations on the reopening of the U.S. Consulate in Jerusalem, Israeli officials say.

Why it matters: The consulate handled relations with the Palestinians for 25 years before being shut down by then President Donald Trump in 2019. Senior officials in Israeli Prime Minister Naftali Bennett's government see the consulate issue as a political hot potato that could destabilize their unwieldy coalition.