Millions of O2 customers have been unable to to make or receive calls or data since around Midday today.
The mobile phone company says it has now fixed the fault but that customers may still experience problems as full service returns.
More top news
As we go into the Bank Holiday weekend, the changeable weather pattern looks set to continue.
Labour leadership contender Andy Burnham has called for the House of Lords to be scrapped, saying it's "a national embarrassment".
Jamaican sprinter Usain Bolt has met the cameraman who crashed into him on a Segway.