Tesla’s new car sales in Europe declined for the fifth consecutive month in May, as more consumers opted for lower-cost Chinese electric vehicles, according to data from the European Automobile Manufacturers Association.

The report, released Wednesday, showed Tesla delivered 13,863 vehicles across the EU, the UK, and the European Free Trade Association—marking a 27.9% drop compared to the same month last year.

Tesla’s market share in Europe fell to 1.2% in May, down from 1.8% in the same month last year.

The data underscores a sustained downturn for the U.S. electric vehicle maker in the region, driven by rising competition and mounting backlash linked to CEO Elon Musk’s polarizing remarks and political actions.

Tesla is grappling with intensifying competition from established carmakers and Chinese manufacturers.

For the first time, Chinese automaker BYD outpaced Tesla in sales of fully electric vehicles in Europe.

Chinese automakers sustained their strong growth in Europe’s new car market in May, undeterred by EU tariffs on Chinese electric vehicles.

According to data released Tuesday by JATO Dynamics, Chinese brands sold 65,808 units last month, more than doubling their market share to 5.9%.

Meanwhile, Tesla’s Model Y has recently played a key role in driving a rebound in new car sales in Norway.