The US Supreme Court has cleared the way for President Donald Trump's administration to resume deportations of migrants to countries other than their homeland.

By a majority of 6-3, the justices reversed a lower court order requiring the government to give migrants a "meaningful opportunity" to tell officials what risks they might face in being deported to a third country.

The Supreme Court's three liberal justices issued a scathing dissent from the ruling in the case of eight migrants, convicted of serious crimes in the US, who were removed on a plane bound for South Sudan in May.

The decision hands the Republican president another victory in his pursuit of mass deportations.

The case involves a group of migrants from Myanmar, South Sudan, Cuba, Mexico, Laos and Vietnam, who were deported by the Trump administration two months ago on a plane heading for South Sudan.