The Facebook-owned, Social media site called Instagram has gone down worldwide. The biggest photo-sharing Instagram app not loading due to server down.
Instagram Down: Outage, Not Loading Instagram Feed

Instagram is experiencing downtime everywhere. The Photo sharing Social Media giant is experiencing downtime in Worldwide. Instagram has gone down on the worst day possible, as its Thanksgiving and people are not able to post pictures!.

As per the graphs, the issues had started from 19:18 IST today with people facing issues of Pictures not loading in their Feeds to not able to send Images in their Direct Messages.
Instagram has posted a tweet acknowledging the server going down. The tweet has specified that many of the Facebook services are down.