Massive crowds have gathered at New York's John F. Kennedy International Airport in protest of President Trump's executive order calling for a temporary immigration ban that led to the detainment of several refugees at the airport.

One of the detainees has since been released, but crowds have continued to grow.

Stunning scene at JFK airport pic.twitter.com/ZAwnYmELo8 — Judd Legum (@JuddLegum) January 28, 2017

The scene from above as thousands chant and scream, draping banners from above at JFK international arrivals shouting "LET THEM IN!" pic.twitter.com/ugU8zbKYiv — Jack Smith IV (@JackSmithIV) January 28, 2017

Documentary filmmaker Michael Moore cheered on the protest calling for more to join. Moore said thousands were at the airport.

Everybody in NYC area-- head to JFK Terminal 4 NOW! Big anti-Trump protest forming out of nowhere! Ppl mobilizing against Trump's Muslim ban — Michael Moore (@MMFlint) January 28, 2017

Thousands keep pouring into JFK Terminal 4! An amazing sight! No planning, no organizing - just me and others saying "get to JFK now!" — Michael Moore (@MMFlint) January 28, 2017

Crowds were protesting Trump and his ban on immigrants and refugees from entering the country.

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Trump on Friday signed an executive order that he said would provide a thorough vetting of refugees to ensure that "radical Islamic terrorists" cannot get into the United States.

Trump's order indefinitely blocks refugees from war-torn Syria from entering the U.S. and suspends all refugee admissions for 120 days while the administration determines which countries pose the least risk.

But the order stirred chaos on Saturday as the administration moved to implement the order amid wide backlash from business groups, civil-rights groups and a slew of Democratic lawmakers.