Instagram and Facebook are out of business in most parts of the world ... before they come back

A sudden social networking application # Facebook and #Stagram has hit most of the world, causing them to stop working for some time.

It was not immediately clear what caused the crash, with Facebook, owner of Facebook, not commenting on the incident.

Thousands of people around the world have complained that they can not upload their photos on Facebook and Ingestram, their inability to put their signatures on publications, and have received messages that show them a breakdown in application.

Many people have posted Twitter tweets saying that # Facebook has suddenly stopped working, while some have speculated that Facebook is hacking or that there is something wrong with the site.

However, the application service quickly returned to normal at 3.40 GMT, suggesting that the nature of the flaw could be due to a technical flaw, not to wait for the official Facebook clarification of what happened.