Chinese companies should be wary of buying U.S. chips as they are ¡°no longer safe¡± and buy locally instead, four of the country¡¯s top industry associations said on Tuesday in a rare coordinated response to Washington¡¯s curbs on Chinese chipmakers.

The two nations have targeted each other¡¯s economies in the last few days, escalating tensions even before U.S. President-elect Donald Trump returns to the White House in January. Trump has promised to impose heavy tariffs on imported Chinese goods, reviving a trade war from his first four-year term as president.

The industry association warnings came after the U.S. on Monday launched its third crackdown in three years on China¡¯s semiconductor industry, curbing exports to 140 companies, including chip equipment maker Naura Technology Group.