An Australian anti same-sex marriage group has marked Father's Day by releasing a video warning of the dangers of children growing up without Dads. The Marriage Alliance commercial uses American statistics to back its claims that children without fathers are more likely to drop out of school, run away from home, be involved in crime and end up in prison.

Spokeswoman Sophie York said same-sex couples were deliberately denying children their fundamental right to have a male and female role model. While the video did not mention divorce, death and other circumstances that might result in a child growing up without a father, Marriage Alliance said in its statement it did acknowledge those factors.

"But deliberately putting a child into fatherless parental arrangement as occurs with a same-sex relationship or a legalised same-sex marriage means putting that child at extreme risk," it said. "It legitimises an increase in fatherless kids." Read More via Sydney Morning Herald