United Kingdom, June 18 -- Apple is planning to raise the prices of some of its products as the cost of memory chips continues to climb amid booming demand for artificial intelligence technologies.

Outgoing chief executive Tim Cook said price increases had become inevitable as manufacturers faced mounting supply pressures.

He told The Wall Street Journal: "We're doing our best to mitigate the huge increases that are being passed to us, and we've been trying to shield our customers from the increases, but the situation has become unsustainable."

Cook did not reveal when the increases would take effect or which devices would be affected. It also remains unclear whether the anticipated iPhone 18 lineup, expected to launch in September, wi...