China's state media have praised some U.S. firms for "strong collaboration" - commentary that comes amid fears of a trade war and is reminiscent of how tensions with the U.S. were covered by Chinese newspapers during Donald Trump's first presidency.

BEIJING (Reuters) -China's state media warned U.S. President-elect Donald Trump his pledge to slap additional tariffs on Chinese goods over fentanyl flows could drag the world's top two economies into a mutually destructive tariff war.

Tariffs look set to be at the heart of Trump’s economic policy and the billionaire made it clear he wants his economic team to hit the ground running in January.

Chinese state media has cautioned that President-elect Donald Trump’s pledge to impose additional tariffs on Chinese goods risks igniting a devastating tariff war between the world’s two largest economies.

China's state media shrugged off U.S. President-elect Donald Trump's pledge to slap additional tariffs on Chinese goods in editorials late on Tuesday, accusing the former president of blaming China for the country's failure to address the fentanyl crisis.

U.S. President Joe Biden on Thursday said he hoped Trump would rethink his plan to impose tariffs on Mexico and Canada, saying it could “screw up” relationships with close allies.

Trump on Monday threatened an additional tariff of 10 percent unless China halts the flow of Fentanyl precursors.