Veteran environmental activist Swampy has left an anti-HS2 demonstration in a network of tunnels beneath central London, leaving just one protester left.
Swampy, whose real name is Dan Hooper, was arrested after leaving the site in Euston Square Gardens on Thursday morning.
With him was 18-year-old Blue Sandford, the daughter of Scottish landowner Roc Sandford, and an unnamed 22-year-old woman – both of whom were also arrested.
The network of tunnels near Euston station was discovered on 26 January, having been created in secret by protesters who oppose the redevelopment of the area for the HS2 railway line.
Eight campaigners have so far left the tunnels; however, HS2 Rebellion, the group behind the demonstration, says one person still remains underground.
On Thursday, the group said the latest three campaigners to leave were “well” and in “high spirits” after their arrest on suspicion of aggravated trespass.
“They were taken to hospital as a precaution and subsequently into custody at a London police station,” a Metropolitan Police statement said.
It added: “Officers remain at the HS2 site.”
Meanwhile, Ms Sandford said she plans to “carry on protesting with everything I have because I’m fighting for the lives of everyone I love.
“We need you too – please help.”
The update comes after geography lecturer Larch Maxey, 48, was removed from the protest site by bailiffs on Monday, before being handed over to police.
He later appeared at Highbury Corner Magistrates’ Court where he denied criminal damage and two counts of obstructing or disrupting a person engaged in lawful activity.
Swampy’s son, 16-year-old Rory Hooper, had also been part of the protest. He left the site last week.
