New Delhi: Facebook CEO Mark Zuckerberg apologized for the disruption in the services of Facebook, Whatsapp and Instagram then stated that the services were coming back online.
"Facebook, Instagram, WhatsApp and Messenger are coming back online now," Zuckerberg said in a Facebook post.
"Sorry for the disruption today -- I know how much you rely on our services to stay connected with the people you care about," he added.
Taking to Twitter early on Tuesday, WhatsApp said: "Apologies to everyone who hasn't been able to use WhatsApp today. We're starting to slowly and carefully get WhatsApp working again. Thank you so much for your patience. We will continue to keep you updated when we have more information to share."
Facebook, WhatsApp, and Instagram crashed for users worldwide on Monday in a global outage wherein millions were unable to use the Facebook-owned applications.
While it is normal for websites and apps to suffer outages, one on a global scale lasting for several hours is rare to see. Users, in different parts of the world, reported being unable to access the applications. India has one of the highest numbers of users on Facebook as well as its other platforms.
Earlier, a site that monitors reports of outages across the internet, Downdetector, said the Facebook service outage is the largest it has ever seen.
The company said in a post on Monday, "The largest outage we've ever seen on Downdetector with over 10.6 million problem reports from all over the globe."
Monday's outage has left several services under the Facebook corporate umbrella, including Instagram, WhatsApp and Messenger, inaccessible.