UPDATE, 9 p.m.: Federal Judge Ann M. Donnelly of the Eastern District of New York Courthouse in Brooklyn has just ordered an emergency stay against the implementation of Donald Trump's executive order. This protects those who are here with valid papers from deportation.

The Verge notes that the "court ruled on a habeas corpus petition filed by the ACLU on behalf of Hameed Khalid Darweesh and Sameer Abdulkhaleq Alshawi, who were denied entry to the U.S. upon landing at JFK airport." The men have been released, and the stay has also been extended to "100-200 others in airports across country." The stay will remain until hearing on Februrary 21st. Speaking outside the courthouse, Deputy director of the ACLU’s Immigrants’ Rights Project, Lee Gelernt, declared: "No one can be sent back today."

10 p.m. The ACLU has released this statement:

A federal judge tonight granted the American Civil Liberties Union’s request for a nationwide temporary injunction that will block the deportation of all people stranded in U.S. airports under President Trump’s new Muslim ban. The ACLU and other legal organizations filed a lawsuit on behalf of individuals subject to President Trump's Muslim ban. The lead plaintiffs have been detained by the U.S. government and threatened with deportation even though they have valid visas to enter the United States.

Gelernt explained: "This ruling preserves the status quo and ensures that people who have been granted permission to be in this country are not illegally removed off U.S. soil.”

ACLU Executive Director Anthony D. Romero, had this to say about the ruling, “Clearly the judge understood the possibility for irreparable harm to hundreds of immigrants and lawful visitors to this country. Our courts today worked as they should as bulwarks against government abuse or unconstitutional policies and orders. On week one, Donald Trump suffered his first loss in court.”

Judge Donnelly "The stay is granted!" — Jackie Vimo (@JackieVimo) January 29, 2017

Stay of ban removals pic.twitter.com/jZjtidm2IF — Omar C. Jadwat (@OmarJadwat) January 29, 2017

ACLU lawyers being celebrated at Cadman pic.twitter.com/iC2iLcLtiI — David Weiner (@daweiner) January 29, 2017

Word of the decision reached JFK, where many protesters were still gathered:

Original story below.

Angered by and ashamed of President Trump's immigration ban focused on seven Muslim-majority countries, hundreds of people have flocked to the U.S. Courthouse in Brooklyn to show support for a detainee, who has an emergency hearing there tonight.

There is an emergency hearing for a detainee at Brooklyn Cadman Plaza court 7:30 we need support for him there. #NoMuslimBanJFK #NoMuslimBan — MaketheRoadNewYork (@MaketheRoadNY) January 29, 2017

The hearing is at 225 Cadman Plaza Brooklyn, 4G North. Those gathered are shouting, "Let them stay! Let them stay!"

At least a thousand people are protesting at JFK Airport, where at least a dozen people had been detained today.

UPDATE #JFKTerminal4: emergency hearing @ 7:30 @ Cadman Plaza TONIGHT Organizers asking to gather there in solidarity pic.twitter.com/CI9Pj1eMH7 — sarah lidgus (@sarahlidgus) January 28, 2017 @MMFlint If people can't get to JFK, go here: Emergency hearing on #MuslimBan 7:30PM 225 Cadman Plaza, Courtroom 4GM. Pack court — Ann Kjellberg (@annkjellberg) January 29, 2017

Additional reporting by Jen Chung