Ukraine imposed sanctions on three Chinese companies on Friday claiming they were involved in production of advanced Iskander missiles, a day after President Volodymyr Zelenskiy alleged that China had been supplying weapons to Russia.

Beijing has warned its trading partners against succumbing to US pressure to isolate China in President Donald Trump’s tariff war, as part of its carrot-and-stick approach to win over countries caught between the world’s two largest economies.

China said it would take “countermeasures” against countries that take trade deals with the United States that it deems to be detrimental to its interests. The Trump administration imposed a 145% tariff on China which countered with a 125% tariff on imports from the U.