Amid the much-discussed trade war, the US Postal Service (USPS) said it has temporarily stopped accepting parcels from mainland China and Hong Kong.
Letters will not be affected by the suspension, according to a statement on the company's website, BBC reported.
It said the suspension will be in place "until further notice" and did not offer a reason for the decision.
The latest development comes after US President Donald Trump imposed an additional 10% tariff on all goods imported to the US from China.
Trump's executive order eliminated an exemption that allowed goods worth $800 or less to enter the US without having to pay duties or certain taxes.
The so-called "de minimis" tax loophole faced increased scrutiny in recent years as Chinese e-commerce giants like Shein and Temu used it to reach millions of US customers.
In response China said it would implement tariffs on some US imports.
From February 10, coal and liquefied natural gas products (LNG) will face a 15% levy. Crude oil, agricultural machinery and large-engine cars will be subject to a 10% tariff.
President Trump is expected to speak to his Chinese counterpart Xi Jinping in the coming days.
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