A US judge has temporarily blocked the Trump administration from deporting the wife and children of a man charged with fire-bombing 12 people at a Colorado event in support of Israeli hostages.

A federal judge issued an order Wednesday to prevent the deportation of the wife and five children of an Egyptian man charged in the firebomb attack in Boulder, Colorado.

A US judge has temporarily halted deportation proceedings against the family of a man accused of Sunday's petrol-bomb attack on Jewish demonstrators in Boulder, Colorado. Mohamed Sabry Soliman, 45, is accused of a federal hate crime and other charges. Officials say his family, who are not charged in the attack, are Egyptian citizens.