(Reuters) — Italy’s competition watchdog has launched proceedings against Facebook for non-compliance with a request it had made regarding improper commercial practices in the group’s treatment of user data, the agency said on Friday.The procedure could lead to a possible fine of €5 million ($5.6 million), the agency said in a statement.

In November 2018, the watchdog ruled Facebook had not informed users properly about the collection and commercial use of data they released.

It fined Facebook $5.6 million million and asked it to publish an amending statement on the homepage of its website for Italy, on the Facebook app, and on the personal page of each registered Italian user.

On Friday, the regulator said Facebook had not complied with this request.