British mobile network O2 is experiencing a major service disruption this evening, with users on Twitter reporting trouble using the operator's voice and data network.

We've confirmed that O2 seems to be experiencing issues using a SIM of our own — for us, the data network was dead, while texts and calls were working. Other O2 subscribers are tweeting about more widespread problems, however. The network's official Twitter account is offering its apologies to affected customers, and the O2 service status page confirms an "intermittent issue," which it says its engineers are monitoring.

It's the third high-profile network disruption for O2 in the past 18 months. In July 2012 users experienced up to 24 hours of downtime due to a software error, which resulted in compensation being offered to customers. A similar issue emerged last October, affecting some 10 percent of subscribers.

If you're on O2 in the UK and have been affected by the outage, shout out in the comments. 

More: @O2_UK, O2 service status