HS2 Rebellion say they are ready to occupy space under Euston Square Gardens to stop it being sold off.
Protesters claimed they have dug and are ready to occupy a 100ft tunnel network under a small central London park they claim is at risk from the HS2 line development.
HS2 Rebellion, an alliance of groups and individuals campaigning against the planned high-speed railway, claim Euston Square Gardens, a green space outside Euston station, will be built over with a temporary taxi rank before being sold off to developers.
HS2 protesters dig 100ft tunnel under London park