China's tariffs against U.S. agricultural products take effect amid a U.S.-China tariff war. President Donald Trump has targeted China with tariffs, blasting the country for involvement with fentanyl pouring into the US.

The Chinese government announced the tariffs last week, shortly after President Trump raised tariffs on Chinese products for the second time since he took office in January. The Chinese tariffs will include a levy of 15 percent on U.S. products like chicken, wheat and corn, as well as 10 percent on products like soybeans, pork, beef and fruit.

In a rare bipartisan move, two senators have introduced legislation in the latest attempt to fight the flow of fentanyl and its precursors into the United States from China, Mexico and through other borders — one reason that President Donald Trump has given for his new tariffs.

Beijing will "resolutely counter" U.S. pressure on tariffs and the fentanyl issue, China's foreign minister said on Friday, adding that major powers "should not bully the weak", in a veiled swipe at the Trump administration's foreign policy.

President Trump has imposed steep tariffs on Canada, China, and Mexico in the name of curbing fentanyl flows into the United States. In reality, supplies of the drug—and related deaths—have sharply