“We apologize for any inconvenience.”
The website Down Detector received tens of thousands of reports of issues with the social media sites from around the globe.
One reader told the Herald they had tried many times to log in to Facebook, even changing their password but to no avail. The issue was “very frustrating”, they said.
Another said her whole house was affected by the outage - first thinking their accounts or the wifi router had been hacked. Her 7-year-old son, who is autistic, has been “inconsolable”, she said.
However another reader said while she could not log in via her phone, she could still access the site using her tablet.
Numerous Newstalk ZB listeners also called and texted to say they were experiencing problems early this morning.
Meta trying to fix ‘major disruption’
Parent company Meta - which owns the platforms - posted on its website at 4.17am warning of “major disruption”.
“We are aware of an issue impacting Facebook Login. Our engineering teams are actively looking to resolve the issue as quickly as possible.”
A London-based internet monitoring firm, Netblocks - which advocates for internet freedom - said there was no sign of “country-level internet disruptions or filtering”, according to AP.