Boris Johnson's first day in office has been mired by protest across the country.
Demonstrators against the controversial politician took place in London, Cambridge and Glasgow, among other cities on Wednesday.
A Facebook event set up by pro-EU campaign group Our Future, Our Choice had over 5,000 people set to attend a protest in central London on Wednesday evening.
"We will be ready to greet him," the event page read.
"We will be ready to reject him. And we will be ready to reject every single one of his cronies and everything they stand for."
Protesters say Mr Johnson is sexist, homophobic and racist and therefore unfit to hold office. In a column for the UK's Daily Telegraph newspaper in 2002, Mr Johnson used the term "watermelon smiles" when referring to people from the Congo and has made a host of other insulting comments during his career both as a journalist and MP.
Some also resent his role in the Leave campaign for Brexit.
As Mr Johnson made his way to Buckingham Palace to be sworn in by the Queen on Wednesday, climate protesters blocked the Mall in an attempt to hand the new prime minister a letter.
Police quickly bundled the protesters to the side of the road, but they were also able to unfurl a banner reading "Climate Emergency" in front of Mr Johnson's car.
The letter, climate group Greenpeace said, "We are calling on you to declare a Climate Emergency now - and then to act like it," before listing ten actions the government should take to tackle climate change.
One protest group sought to advise the monarch on her approach to Mr Johnson before his arrival at the Palace. As dawn broke over the Queen's London and Windsor residences on Wednesday, video messages were projected onto the buildings. The videos, which showed clips of Mr Johnson waving a kipper, called Mr Johnson a "liar" and a "bully".
The kipper video made reference to a claim Mr Johnson made during the Conservative leadership battle that EU regulations on the fish were damaging trade. In fact, those regulations are formed in the UK.
The video campaign was carried out by upstart crowd-funded group Led by Donkeys. The group consists of four men in their thirties who began a billboard campaign showing contradictory or embarrassing quotes from politicians on Brexit.
