Apple unsure when more foldable iPhones will be available after selling out

The new head of Apple says the company is working to get its new foldable iPhones available to more people after the $1,999 smartphone quickly sold out when it was released just over a week ago.

John Ternus, who in September took over the role as Apple's chief executive from Tim Cook, said on Monday that he was "thrilled" at the early reaction to the iPhone Duo.

While the costly phone, which sells for £1,999 in the UK, immediately sold out, some buyers have seen their screens crack.

The phones are still in high demand and Sabhi Kahn, Apple's new chief operating officer, said the technology giant did not know when more Duos would be available.