Apple has announced that it has found issues affecting some of its iPhone X and 13-inch MacBook Pro products, and said the company would fix them free of charge.

The repair offers are the latest in a string of product quality problems over the past year even as Apple has raised prices for most of its laptops, tablets and phones to new heights. Its top-end iPhones now sell for as much as $2369 and its best iPad goes for as much as $2869.

Apple said displays on iPhone X, which came out in 2017 with a starting price of $1579, may experience touch issues due to a component failure. The company said it only affects the original iPhone X, which has been superseded by the iPhone XS and XR.

The screens on affected phones may not respond correctly to touch or it could react even without being touched, the company said. The issue has been widely discussed by affected iPhone X users online, who sometimes refer to it as "ghost touch".