President Donald Trump said he would impose tariffs on cars imported from the European Union if U.S. talks with the bloc don’t yield a new trade deal.

Trump told reporters at the White House Wednesday that talks are ongoing and EU representatives are tough negotiators.

“If we don’t make the deal we’ll do the tariffs,” Trump said. “We’re trying to make a deal. They’re very tough to make a deal with, the EU.”

The president received a report on Sunday examining whether imported cars pose a national security threat to the U.S. Trump has 90 days to decide whether to act on the findings, which haven’t been released.