San Francisco: Facebook said it was "back at 100 per cent" Wednesday evening after an outage on all of its services affected users in various parts of the world.

Online monitoring service DownDetector reported earlier the outage began around 1200 GMT and affected Facebook as well as its Instagram and WhatsApp services.

"The issue has since been resolved and we should be back at 100% for everyone," the company tweeted at 0006 GMT Thursday, adding they were sorry for "any inconvenience." 

A Facebook spokesperson, also speaking on behalf of Instagram and WhatsApp, explained that a "routine maintenance operation" accidentally triggered a bug that made it difficult for users to upload or send photos and videos, US media reported.

#Facebookdown and #instagramdown were trending on Twitter as users around the world reported these apps were not functioning.

According to DownDetector, thousands of users around the world were reporting outages, with Europe and North America most impacted. Both individual users as well as businesses and organizations were affected.

"Yes, we are affected by #instagramdown, too," the CIA tweeted during the outage.

"No, we didn't cause it. No, we can't fix yours. Did you try turning it off and back on again?" Earlier this year, an outage lasting as long as 24 hours that hit Facebook services was blamed on a "server configuration change." 

The March 13 outage was believed to be the worst ever for the internet giant, which reaches an estimated 2.7 billion people with its core social network, Instagram and messaging applications.

The company did not immediately respond to an AFP query on Wednesday's outage.

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Ostrava (Czech Republic), Jun 24 (PTI): Indian javelin throw superstar Neeraj Chopra on Tuesday clinched the title at the Golden Spike meet in his maiden appearance here, his back-to-back win in a top-class competition.

Fresh from his Paris Diamond League win on June 20, Chopra emerged on top in a nine-man field here though with a modest effort of 85.29m in the World Athletics Continental Tour Gold event.

He had skipped the last two editions of Golden Spike -- an event that his coach Jan Zelezny won nine times in a storied career -- due to fitness issues.

The 27-year-old Chopra has had an impressive season so far, having won his first Diamond League title in two years in Paris after also breaching the elusive 90m mark during his second place finish in Doha DL in May.