A cyber attack has affected major hospitals in London, leading to operations being cancelled and emergency patients being diverted elsewhere.

The incident applies to hospitals partnered with Synnovis - an IT provider of pathology services.

King’s College Hospital, Guy’s and St Thomas’ and primary care services are among those affected.

The incident has had a major impact on the delivery of services, especially blood transfusions and test results. Transplant operations have also reportedly been cancelled.

Some procedures have been cancelled or have been redirected to other NHS providers as the hospitals try to establish what work can be carried out safely.

Synnovis serves patients across six London boroughs, supplying services including swabs and blood tests.