UPDATE: Users of the app received a push notification at 12pm, with Uber advising customers:
You may be experiencing issues with the Uber app. We are aware of this issue, and . we are working hard to solve it as soon as we can.- Uber Australia
Rideshare app Uber is currently experiencing outages worldwide, with users unable to book trips.
At the time of writing, an Uber outage report is showing issues in Sydney, Melbourne, Brisbane and Perth.
We are aware of a technical issue that is preventing some customers from using our app. We sincerely apologize for the inconvenience and are working quickly to resolve the issue.- Uber Australia
We apologize for the trouble. Our team is working hard to restore functionality as soon as possible.- Twitter - Uber Support
Uber has tweeted an apology after receiving tweets from around the world about the outage.
More to come.