New York (Reuters): A US federal judge in Brooklyn has issued an emergency stay temporarily halting the deportation of valid visa holders or refugees under an executive order from President Trump .

The American Civil Liberties Union estimates the stay will affect 100 to 200 people detained at US airports or in transit, but government lawyers could not confirm that number.

The ruling by the US District Court Judge Ann Donnelly came during a hearing called after President Donald Trump issued an executive order blocking people from seven Muslim-majority countries from entering the United States, and putting a temporary halt to refugee admissions.