A picture shared on social media showed four people who had climbed on top of the roof.

They remained there for at least five hours before getting down and being taken away by police vans. Another person has also been arrested.

They have all since been released on bail pending further enquiries.

The stunt has raised questions over how the activists were so easily able to access the prime minister’s home.

Former home secretary Priti Patel said: ‘This raises some very serious questions around how the home of a sitting prime minister has been accessed in this way, to the extent that political campaigners and activists have been able to trespass on his property and physically gain access.

‘There are major security concerns that have to be investigated, and quite frankly the home secretary should be absolutely looking into this as a matter of urgency and raising an immediate review.’

Former Tory leader Sir Iain Duncan Smith added: ‘It’s a pathetic stunt for them to try and do which shows the pathetic, childish, poisonous nature of these organisations.

‘But also how is it that the security doesn’t seem to know how to protect the house of the prime minister – that’s a shocking discovery. There has to be an inquiry into what the hell was going on.’

A statement on Greenpeace’s website read: ‘Rishi Sunak has just said he is going to continue handing out new oil licences and he is on the cusp of approving Rosebank, the largest undeveloped oil field in the North Sea.

‘This will be a climate disaster and will do nothing to lower bills, so we need your help to stop it.

‘We have seen governments make countless u-turns when enough public pressure is put on them.

‘Let’s force Rishi Sunak to pick a side: oil profits or our future?’

But Mr Sunak is likely to deal with the fallout on his return, while he takes the time to enjoy his trip away.