OXFORD University Hospitals NHS Foundation Trust said it remains 'on alert' following a large-scale cyber attack at some England hospitals.

The Trust was speaking after reports of a 'malware' attack at some hospital trusts including those at Lancashire and Hertfordshire.

Peter Knight, chief information and digital officer at the Oxford Trust said they were aware of the attacks and that so far security measures were holding up.

He said: “We have been notified by NHS Digital about the cyber attacks on the NHS and we are on alert at present.

"So far, our strong security measures are holding solid.

"We continue to closely monitor the situation and have asked staff to be vigilant. Protecting patient information is our top priority.

“We understand that NHS Digital has set up a dedicated incident line, and suppliers are working to find solutions to this ransomeware outbreak.”

Meanwhie, Oxford Health is yet to confirm if it has been affected by the attack.

NHS Digital said in a statement: "The investigation is at an early stage but we believe the malware variant is Wanna Decryptor.

"At this stage we do not have any evidence that patient data has been accessed. We will continue to work with affected organisations to confirm this.

"NHS Digital is working closely with the National Cyber Security Centre, the Department of Health and NHS England to support affected organisations and to recommend appropriate mitigations."