The world three biggest social media platform own by Mark Zuckerberg, has been hit by a global shutdown, according to the spokesman of Facebook Inc. representing the social media company Andy Stone, said the company apologize for the situation, though he gave no reason for the shutdown or when the problem would be fixed.

It is unclear if the problem caused by DNS (domain name server) fail, which is the naming structure that forms the web infrastructure. This has come as a surprise to millions of users, who have been unable to connect to these three apps shortly before 5pm today.