Apple issued a statement on Friday saying the white iPhone 4 is being delayed again, this time until later this year. “White models of Apple’s new iPhone 4 have continued to be more challenging to manufacture than we originally expected, and as a result they will not be available until later this year. The availability of the more popular iPhone 4 black models is not affected.”

The white iPhone 4 model has never made it to the public yet. When the iPhone 4 first went on sale Apple said the white model would not be available until late July.

There is no indication why the white model has been delayed.