European Commission President Ursula von der Leyen and U.S. President Donald Trump had a "good exchange" on Sunday, a Commission spokesperson said on Monday, adding that the EU's aim remained to reach a trade deal with Washington by July 9.

"We want to reach a deal with the U.S. We want to avoid tariffs. We believe they cause pain. We want to achieve win-win outcomes, not lose-lose outcomes", the spokesperson told reporters during a daily press briefing.

The Trump administration has said letters would go out notifying trading partners without a deal by July 9 of higher tariffs that would take effect on August 1.