Belgian prosecutors are investigating a salmonella outbreak at a Ferrero factory that was forced to close on orders from the authorities last week, the Belga news agency reported on Monday, citing the public prosecutor’s office. The investigation is linked to a factory in the Belgian town of Arlon to which hundreds of salmonella cases across Europe have been linked. On Friday the Belgian food safety body AFSCA suspended Ferrero’s licence for its Arlon plant until all food safety requirements were met. It also ordered the withdrawal of all chocolate products aimed at children manufactured at th…