The Passport Office is among the services affected
Phone lines and email services are down for the Department of Foreign Affairs this afternoon.
The outage is affecting a number of services, including the Passport Office.
They say work is ongoing to resolve the technical difficulties.
In a statement on the passport website, the department says: "We are currently experiencing technical difficulties with our phone and email services.
"We are working to resolve the issue as a matter of urgency. We apologise for any inconvenience caused."