Two men and a woman were arrested after chaining themselves together outside the gates to an oil exploration site near Billingshurst in West Sussex.
The group was calling on the site operator, UK Oil & Gas Investments plc (UKOG), to stop work at the site to mark World Environment Day.
UKOG began drilling at Broadford Bridge on 29 May, despite the opposition of some local residents and campaign groups.
Today’s protest followed a “Greet the Dawn” ceremony by the newly-formed Broadford Bridge Action Group.
A spokesperson for the group said:
“We set a peaceful intention and stood in solidarity with other protectors from Nigeria to the Amazon to Standing Rock Dakota to the whole of the UK to show our concern about climate change.
“The drilling and exploitation of fossil fuels contributes to the warming of the planet, pollution of air, water and earth. We don’t want this any day especially World Environment Day.”
Sussex Police said the road was closed while a specialist team cut free the lock-on protesters.
The force said Connor Heffey, 25 of no fixed address, Charlotte Feasey, 31, of Crawley, and Daniel White, 23, of Adversane Lane, Adversane, were charged with using violence or intimidation on person, family or property to compel activity or abstention from lawful activity. A police spokesperson said the three were bailed to appear at Worthing Magistrates’ Court on 4 July 2017.
Updated 7/6/2017 with charge and court date