Donald Trump said he may press European governments to release diesel reserves as fuel prices hit record highs, prompting Brussels to open emergency talks that the UK has now joined, according to Sky News.

Why it matters: diesel underpins freight, farming and heating across Europe. A supply squeeze as winter demand builds could push energy costs higher for households and businesses across the EU and UK, with knock-on effects for inflation.

What is unresolved: which reserves Trump wants released, how much volume is at stake, and whether EU and UK officials can agree a coordinated response before winter demand peaks, per Sky News.