Italy have since admitted that non of it is bound for the UK, as the original report strongly suggested.
This is getting really silly now.
That plant in Italy hasn't been passed by the EU as safe site to produce the vaccine at the time being.
They only certified a certain number of sites to make the vaccine when passing it for use, for instance the Belgian one.
(The UK has said all the AZ sites can be used,) meaning that the so-called hidden ones are not by their own present laws for use within the EU no matter where its end destination is, if its getting stockpiled it may suggest that it for their use as well when the plant gets certified