Four people have been charged after a protest by climate change activists in Cambridge.

It's part of a week-long series of demonstrations by Extinction Rebellion, who yesterday blockaded a Shell petrol station in Newnham Road and poured a treacle-like substance over it, giving it the appearance of being covered in oil.

The group blocked cars from getting into the petrol station, holding up signs that read 'life or death'.

There's been some criticism of their tactics, including digging up the grass at Trinity College and blockading an energy research building in the city.

This is the latest stunt in a week long campaign in the city to raise awareness of climate change Credit: ITV Anglia

Tilly Porter, 21, of King’s Parade, Cambridge, has been charged with criminal damage and obstructing or disrupting a person engaged in lawful activity. She has been remanded in custody to appear at Huntingdon Magistrates' Court today.

Peter Green, 24, of Mansell Road, London, has been charged with aggravated trespass. He has been released on bail to appear at Cambridge Magistrates’ Court on 30 March. He has been given bail conditions not to enter the county accept to attend court.

Adam Whybray, 32, of The Street, Nacton, Suffolk, has been charged with aggravated trespass. He has been released on bail to appear at Cambridge Magistrates’ Court on 30 March. He has been given bail conditions not to enter the county accept to attend court.

Mahoney Goodman, 21, of Long Reach Road, Cambridge, has been charged with aggravated trespass. He has been released on bail to appear at Cambridge Magistrates’ Court on 30 March.

A 14-year-old girl from Yorkshire, who was arrested on suspicion of criminal damage, has been interviewed on suspicion of criminal damage.

A couple of protestors climbed up on the roof of the petrol station to pour molasses over it Credit: ITV Anglia