Demonstrators gathered outside a petrol station in Exeter as part of the campaign by Greenpeace to free a group of activists being held in Russia.
They claim Shell is complicit because it's a partner of the state-backed Russian oil company Gazprom.
Three people from Devon are among 30 awaiting trial following a protest at a drilling rig in the Arctic.
Parents of two of them joined the protest:
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Outbreaks of rain and drizzle could turn heavy at times, with foggy conditions persisting over main coastal areas. Highs of 13 or 14 C
There will be outbreaks of rain and drizzle today which could turn heavy at times. Maximum temperatures around 13 or 14 degrees
After days of sunshine it's going to be a glum day tomorrow. For the rest of the week, it's sunshine and showers.