Facebook Inc apologised to users for a two-hour disruption to its services on Friday and blamed another faulty configuration change for its second global outage this week.

The company confirmed its social media platform, Instagram, Messenger and Workplace were impacted by the latest outage.

"Sincere apologies to anyone who wasn't able to access our products in the last couple of hours," the company said. "We fixed the issue, and everything should be back to normal now."

During the latest outage, some users were unable to load their Instagram feeds, while others were not able to send messages on Facebook Messenger...