Dreamers stage protest during Macy's Thanksgiving Day Parade

Four protesters sat in the street to call for action on the DREAM Act.

— -- Four Dreamers momentarily halted the Macy's Thanksgiving Day Parade in New York City in a demonstration they say is aimed at calling for action from Congress to replace an expiring Obama-era program that protects them from deportation.

One of the protesters, Hector Martinez, 26, told ABC News he decided to take part in the demonstration "to push for more protection for undocumented youth."

The NYPD police officers carried the protesters out of the parade route and told them if they came back they would be arrested, Martinez said.

DACA was started by President Barack Obama in 2012 through an executive action that allowed certain undocumented immigrants who were children when they were brought to the U.S. to remain in the country and be eligible to work and study if they meet certain requirements.

Martinez said that decision has created "a time of great difficulty" for Dreamers, who now face uncertainty as Congress debates a replacement to the program. The protection will begin to expire for the program's enrollees in March of 2018 if no action is taken.

Nearly 800,000 unauthorized immigrants who came to the United States as children have been granted protection from deportation under the program.