Customers in the Middle East who purchase an iPhone 4 will not have FaceTime video chat functionality, as the feature is "currently unavailable" in the region.

As noted Friday by TUAW, du, the official iPhone carrier in United Arab Emirates, revealed that the iPhone 4 will not be able to make FaceTime calls at launch. The handset is set to debut in the country on Saturday.

"Our iPhone 4 customers won't be able to make Facetime calls, as this feature is currently unavailable in the UAE," the company wrote on its official Twitter account.

Users who wrote to the carrier on Twitter were met with the response: "It's not in our hands and we'll keep you posted of any further updates." No further details were given.

Graphics for the iPhone 4 on Apple's official websites for United Arab Emirates, Saudi Arabia, Qatar, Yemen and other countries in the region were also modified earlier this week to remove a graphic showing FaceTime in action.