The Chinese government has rejected responsibility for the fentanyl epidemic in the United States. „Fentanyl is America’s problem,“ said a spokeswoman for the Chinese Foreign Ministry on Sunday. The ministry reacted to the introduction of additional tariffs of ten percent on all Chinese exports to the US, which will come into force on Tuesday. US President Donald Trump announced the tariffs weeks ago in an effort to force China to regulate its fentanyl raw materials exports to the US.