The O2 mobile network is down across Cumbria as customers have reported being unable to use their 4G and data.

 A statement on the mobile provider's twitter said engineers are investigating issues related to data and apologise for the inconvenience.

Voice calls still seem to be working OK.

 O2 is the second-largest mobile network in the country, behind EE.

 It has 25 million direct customers, but also provides services for the Sky, Tesco, Giffgaff and Lycamobile networks.