European wine and spirits will face a 15% U.S. import tariff until a different deal is agreed in talks expected to continue in the autumn, the European Commission and EU diplomats said on Thursday, dashing producers' hopes of an immediate reprieve.

The European Union expects wine and spirits exported to the U.S. will face the baseline 15% tariff from Friday, as the clock runs down for levies on the bloc to kick in. The U.S. and EU are ironing out the finer details of a trade agreement reached Sunday.