The U.S. Postal Service is reversing course a day after placing a ban on all inbound packages from China and Hong Kong.

USPS said the change will not impact the flow of letters and 'flats' from China and Hong Kong. It did not immediately comment on whether this was tied to Trump's change to ending de minimis shipments.

Move followed US introduction of tariffs on Chinese imports and removal of long-standing duty-exemption rule, but is no longer in effect