Experts have warned the full damage of the international cyber attack which continues to affect the NHS will only be known once work resumes on Monday.
The attack, which began on Friday, has spread across the globe, with more than 200,000 victims in 150 countries affected.
In an interview with the Press association, the National Cyber Security Centre chief executive, Ciaran Martin, claimed the outbreak would continue to spread across more systems
At this point in time, it remains unknown how the incident has affected GP surgeries, and a spokesperson for NHS England has said it is a "very complex emerging picture."
The public are advised to go about doctor appointments as normal, unless told otherwise.