The U.K.’s National Health Service (NHS) has been hit with amassive computer outage, with 80 NHS Trusts in the North West andWest Midlands unable to access their systems since 10 a.m. localtime on Sunday.

Technical problems in a data center in Maidstone are to blame,NHS Connecting for Health (CfH) has admitted.

The problem originated with a storage area network fault in adata center operated by CSC Alliance. CSC operates patientadministration, clinical records and other national program systemsfor the North West and West Midlands under a