New York: Two women in the US have been arrested for organising a "Fight Club" where pre-schoolers and kindergartners were encouraged to brawl with each other on a playground at a US nursery.

Erica Kenny, 22, of Cranford, and Chanese White, 28, of Roselle -- both former day care workers -- referenced the movie 'Fight Club' as they encouraged pre-schoolers and kindergartners to fight each other on the playground at the Lightbridge Academy in Cranford, New Jersey.