CHICAGO (CBS) — Protesters gathered outside Northwestern Memorial Hospital Sunday afternoon demanding undocumented immigrants be allowed to get in line for organ transplants.

14 people, either those who need a transplant or have relatives who do, are stepping up their hunger strike after having already gone without food for six days and are threatening to stay on the steps of Northwestern Memorial Hospital in Chicago’s Streeterville neighborhood until they meet with the hospital’s CEO.

Gustavo Galvez needs a kidney so isn’t hunger striking but was planning to camp out. He told WBBM if he doesn’t get a transplant he will die in a few years.

A similar group launched a strike last year that they say produced an agreement that, they say, hospital officials have reneged on.

WBBM has reached out to Northwestern Hospital for comment.