O2 has said a “full service” will be restored by Friday morning following a data outage, which affected millions of users.

In a joint statement from the CEOs of O2 and Ericsson, a provider for the phone operator, they apologised to customers for the “poor experience” they faced as they struggled to get online on Thursday.

Ericsson’s Marielle Lindgren explained why users were unable to receive any data.

“The cause of today’s network issue is in certain nodes in the core network resulting in network disturbances for a limited number of customers across the world, including in the UK,” she said.

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