"US officials gave dozens of detained immigrant parents an ultimatum – allow your children to be released from detention without you or face indefinite detention together, according to legal representatives from the country’s three family detention centers," says this article from the Guardian.
“'The families were each upset, most of them were crying,'” said attorney Bridget Cambria. “'Because immigration had called them down one by one and told them that if they wanted their children to leave detention, they had to sign a paper that would separate the parents from the child.'”