The investigations come as Europe's food industry has been engulfed by a meat processing and labelling scandal after multiple processed meat products labelled as beef were revealed to contain quantities of horsemeat.

BBC: Germany investigates organic egg 'fraud'

In February, Dutch officials raided a meat processing plant suspected of mislabelling beef and ordered the withdrawal of suspicious products from supermarket shelves.

BBC: Horsemeat scandal: Dutch uncover large-scale meat fraud