Subterranean protest against high-speed rail line lasted 31 days in tunnel near London station
The anti-HS2 tunnel protest close to Euston station in central London has finally ended after the ninth climate activist emerged from underground.
The subterranean environmental protest has lasted for 31 days, one of the longest in UK protest history, although not quite breaking the record of the 40-day tunnel protest in Essex in 2000.
