Northumbria Police is warning the public of a loss of the 999 and 101 services in the Felton and West Thirston areas of Northumberland.
The problem is affecting landlines and work is ongoing to resolve the issue. It is hoped that service will be restored in the next couple of hours.
Anyone with an emergency in these areas can still contact 999 and 101 from a mobile phone.
There are extra officers being deployed to key points in the areas should there be any concerns.