BERLIN — German officials say there’s been a sharp drop in sales of new diesel cars, following a court decision that allows cities to ban the use of heavily polluting vehicles.

Figures released Wednesday by the Federal Motor Transport Authority show new registrations of diesel-powered cars dropped by 25.4 percent in March to under 109,000, compared with about 146,000 during the same month a year earlier.

Germany’s top administrative court ruled Feb. 27 that cities can ban diesel cars and trucks to combat air pollution. The decision is a further blow to diesel fuel technology after the revelations that German automaker Volkswagen cheated on U.S. emissions tests.

The value of diesel vehicles in Germany already had fallen significantly, and their market share has fallen since the VW scandal broke in 2015.