A man was arrested on suspicion of multiple assaults following an incident that took place around 9am on 20 January at the Parkside Medical Centre, in Bletchley, near Milton Keynes.
Thames Valley Police confirmed that 'a number of people were assaulted' at the practice and that the man arrested 'remains in custody at this time'.
A spokesperson confirmed that people had been taken to hospital but that 'none of their injuries appear to be life threatening'.
GP practice attack
A statement posted on the practice's Facebook page on the day of the incident said: 'This morning at Parkside Medical Centre a serious incident occured where four members of staff and four members of the public were assaulted. Their injuries were not life threatening but three people were taken to A&E.
'We are deeply upset by this incident and wish everyone involved a speedy recovery. The wellbeing of our patients and staff is paramount at this time and measures are currently being put in place to offer support to anyone affected by the event today.'
The practice remained closed the following day and advised patients to seek advice from their local pharmacy or NHS 111 if necessary. It reopened from Wednesday 22 January.
In an update on its Facebook page, the practice thanked patients for 'your patience, understanding and supportive messages during this traumatic time for our practice' - asking for the public to 'bear with us this week as we have limited staff'. In a later update, the practice thanked patients for 'well wishes, flowers, biscuits and cakes' that 'lifted our spirits on our first day back'.
The message added: 'We would like to thank our staff for going above and beyond their normal duties during this time. We would also like to thank the police and ambulance service for their prompt response and ongoing support. And finally, but not least, to our Milton Keynes general practice and NHS colleagues for your help and support.'
GPonline reported last year that more than 3,000 patients were barred from their GP practice in 2018 under a scheme for violent patients.
The figure suggests that nearly one patient is removed each year for violent behaviour for every two practices in England.
The figure - which suggests that nearly one patient for every two practices in England was removed last year - was revealed in a freedom of information request response from NHS England.
Meanwhile, a leading medical defence organisation last year warned GPs to protect their online privacy following a surge in disturbing patient threats.
Measures to protect GP practices were strengthened under the 2018/19 GP contract deal, with practices handed greater powers to refuse to register violent patients.
Note: original story published on 20 January was updated with further information through the week