Sarah Palin
Sarah Palin's family allegedly became embroiled in a fight at a party in Anchorage, AlaskaGetty

The son of former US vice president candidate Sarah Palin did not start a booze-fuelled 20-man melee at an Anchorage house party as previously reported, it has been claimed.

Members of the Palin family allegedly became embroiled in a brawl at a friend's home on 6 September.

Early reports claimed that after arriving at the party in a stretch Hummer limousine, the former Governor of Alaska's son Track confronted a former boyfriend of his 20-year-old sister, Willow.

A fight then broke out involving about 20 people, leaving Track with broken ribs and father Todd with a bloodied nose.

Amid the tumult, eyewitnesses reported Palin screaming: "Don't you know who I am?". However, other reports suggested she was talking about her son, saying: "Don't you know who he is? He's a vet!", in reference to Track's military career.

A source has told Real Clear Politics that the blame for the ruckus lay with Willow's ex-boyfriend and not Track.

"From my understanding, she [Sarah Palin] was in full 'mama grizzly' mode defending the kids," the source added.

Palin also allegedly took issue with reports daughter Bristol unleashed a "mean right hook," with the source saying that the eldest Palin daughter is in fact left-handed.

The Anchorage Police Department confirmed about 20 people were involved in the disturbance and that it was investigating the incident.