Barbara and Jenna Bush were both charged

The incident, at Chuy's restaurant in a fashionable area of Austin, came only two weeks after Jenna was ordered on an alcohol awareness course after police found her drinking beer in an Austin bar.

In that case, Jenna had pleaded no contest to the charge of being a minor in possession of alcohol.

She was ordered to perform eight hours of community service as well as being sent on a six-hour course to learn about alcohol abuse.

The White House declined to comment on the incident, describing it as a "private family matter".

Family history

Underage drinking laws are strictly enforced in the US, but college students habitually try to break them.

Jenna is a first-year student at the University of Texas, while Barbara studies at Yale University in Connecticut.

Mr Bush admitted to having a drink problem in his younger days.

Shortly before last November's presidential election it was revealed that he was arrested for drink-driving 25 years ago after drinking several beers in a bar.

He pleaded guilty to a misdemeanour charge, paid a $150 fine and had his driving licence suspended.

But in 1986 Mr Bush appeared to go through a religious awakening and quit drinking.