The move goes further than the ban last week of the app on government mobile phones and devices, covering the whole parliamentary network. That means that MPs and parliamentary staff who continue to have TikTok installed on personal devices will find the service blocked if they try to access it over parliamentary wifi.
MPs including Shapps will continue to be able to post on the platform from their own personal devices, but not through parliament networks.
The Scottish government has also banned TikTok from its mobile phones and other corporate devices following discussions with the UK government.
