The number of users of the Facebook social networking site in Europe has fallen as much as 1 million users over the past summer, according to the Telegraph newspaper on Monday, under the new data privacy regulations in the European Union.
The World Social Network is expected to announce a decline in revenue and users in the last three months when its financial results are released at the end of October, the newspaper said in a report on its website.
The decline comes after Facebook has put hundreds of millions of European users before a tough choice either by using the network and agreeing to collect the company's data or stop using the site.
The results came after a massive data leak scandal that saw the sale of personal data to tens of millions of Facebook users of Cambridge Analytics, which it used for political purposes during the US presidential election.
Morgan Stanley, the US financial services and investment bank, predicted that Facebook would lose up to one million users from North America and Europe.
The bank said Facebook could lose up to 3 million users on a regular basis from EU countries.