New Delhi: Facebook ruled out a cyber attack on its products Whatsapp, Instagram and Messenger, which suffered service outage for hours on Wednesday. Users across the globe experienced problems sending messages on Facebook's messaging apps Messenger and Whatsapp. The social networking giant's image-sharing website Instagram also suffered service disruptions.

After users reported about the inconvenience faced by them on the websites and mobile apps, Facebook took to Twitter to respond, "We're aware that some people are currently having trouble accessing the Facebook family of apps. We're working to resolve the issue as soon as possible."