BRUSSELS — The European Union has admitted it doesn’t have the power to deliver on a promise to invest $600 billion in the United States economy, only hours after making the pledge at landmark trade talks in Scotland.

That’s because the cash would come entirely from private sector investment over which Brussels has no authority, two EU officials said.

On Sunday, European Commission President Ursula von der Leyen struck a deal with U.S. President Donald Trump to avoid an all-out EU-U.S. trade war. The deal included a pledge to invest an extra $600 billion of EU money into the U.S. over the coming years.

But speaking Monday, two senior European Commission officials clarified that money would come exclusively from private European companies, with public investment contributing nothing.

“It is not something that the EU as a public authority can guarantee. It is something which is based on the intentions of the private companies,” said one of the senior Commission officials. The Commission has not said it will introduce any incentives to ensure the private sector meets that $600 billion target, nor given a precise timeframe for the investment.