A group of climate change activists vandalized

300 million superyacht owned

By Walmart heiress Nancy Walton Laurie

Pictures of the act were posted on the Spain-based

Futuro Vegetal environmental group

Two activists from the group are seen displaying a sign

That read'You Consume Others Suffer

They wrote on Twitter, ''We spray painted using fire extinguishers

Against the 300 million euro mega-yacht of Nancy Walton,Heiress to #Walmart

One of the richest women In the world with a fortune of 8.7 billion dollars