Three Fred Flintstone' campaigners from Fathers 4 Justice scaled Stonehenge this morning in anger at David Cameron's comments about absent fathers.

Jolly Stanesby, 36, from Ivybridge, Dave White, 29 from Southampton and Richard West, 40, from Ottery St Mary, were all wearing Fred Flintstone outfits in a symbolic protest at what they say is Caveman Cameron's' naive and prejudiced belief that fathers are abandoning their children.

The protestors evaded tight security and prevented English Heritage officers forcibly removing them from the stones with a ladder.

Founder of the group, Matt O'Connor, said: "Stonehenge is symbolic because it formed the foundation of our society, foundations being eroded by all the main political parties."

"Family Law is literally killing kids stone dead. Family breakdown is rife and last weeks Unicef report put Britain bottom out of 21 countries as being the worst place in the first world to grow up. We want to consign the secret family courts to history and by putting the world's most famous stone age man on top of the world's most famous stones, we aim to show our commitment to our nations children."