French President Emmanuel Macron has denied reports that U.S. President Donald Trump threatened to withdraw the United States from the NATO military alliance in a dispute over funding.

“President Trump never at any moment, either in public or in private, threatened to withdraw from NATO,” Macron told reporters.

He said the leaders of the alliance’s 29 members met in an extraordinary session on Thursday morning at the request of NATO Secretary-General Jens Stoltenberg.

Trump has complained that many NATO members are lagging behind in their defense spending.