Former President Donald Trump reportedly discussed sensitive information about U.S. nuclear submarines with an Australian member of his club at Mar-a-Lago — an allegation that was shared with special counsel Jack Smith as his team investigates Mr. Trump‘s handling of classified information.

The alleged disclosure to an Australian businessman, Anthony Pratt, occurred months after Mr. Trump left office, according to the ABC News report, which cited unnamed sources familiar with the situation. They said the billionaire relayed the information to dozens of others, including journalists, company employees, Australian officials and former Australian prime ministers.

The report says that at the Florida club in April 2021, Mr. Pratt said he thought Australia should buy submarines from the U.S., prompting Mr. Trump to lean in and offer “the supposed exact number of nuclear warheads they routinely carry, and exactly how close they supposedly can get to a Russian submarine without being detected.”