Look at the photo
The Daily Mail is the only website with a photo of the device in question, and it doesn't look like an iPad Air. The chassis and bezel look like they come from an older model iPad. The exposed internals don't match up with the teardown photos of the Air on iFixit, and they don't look much like the iPad 4 either.
Shoddy journalism from the DM, and even shoddier journalism from all the other sites that picked up on the story.