Apple's UK store is unavailable as of 11am today.

Customers attemtping to access the store are presented with the customary message: "We'll be back soon."

Apple has been known to upgrade products and introduce new ones after its online store goes offline.

Apple also recently took its online retail shop offline in order to implement site changes, so it's possible no new product will be made available.

UPDATE: The store reappeared a few hours later with no clearly evident changes yet identified.

UPDATE 2: The store disappeared once again around midday.