US President Donald Trump said the US could ask European countries to release diesel reserves amid rising prices linked to the war on Iran.

US diesel hit a record of $6.53 per gallon a week ago, while 12 EU member states recorded new all-time highs, according to European Commission data cited by Al Jazeera. France and Germany hold more than a third of the EU’s strategic diesel reserves, according to Reuters, as cited by Al Jazeera.