"If that is not the case, a tariff of at least 25% must be paid by Apple to the US."Adding uncertainty to his ultimatum, Trump later said the tariff wouldn't apply to just the iPhone but also to any smartphone made outside the US.

Apple Inc. shares are coming off their longest selloff in more than three years, as escalating attacks from the White House threaten to further erode the company’s profit outlook, suggesting the stock’s struggles this year are far from over.

The escalating trade tensions initiated by President Trump have placed Apple in a challenging position. With the threat of a 25% tariff on iPhones, the tech giant faces potential disruptions in operations and profitability.