Patients urged to avoid A&E after NHS hit by major ransomware cyber attack

The NHS has been hit by a major cyber attack on its computer systems.

Ambulances have been diverted and patients warned to avoid some A&E departments after systems were targeted on Friday.

NHS Digital said 16 organisations within the health service had seen their IT systems affected as of 3.30pm by a ransomware attack, using malware called "Wanna Decryptor".