U.S. President Donald Trump on Friday threatened Apple with a 25-percent tariff if the iPhones the company sells in the United States are not manufactured locally.

In a post on Truth Social, Trump said he had "long ago informed Tim Cook of Apple that I expect their iPhones that will be sold in the United States of America will be manufactured and built in the United States, not India, or anyplace else."

"If that is not the case, a Tariff of at least 25% must be paid by Apple to the U.S.," he added.