A federal judge has sent U.S. Army whistleblower Chelsea Manning to jail, after she declined to answer questions before a grand jury. Manning was subpoenaed by federal prosecutors in Virginia’s Eastern District to appear for questioning Wednesday about her 2010 release to WikiLeaks of hundreds of thousands of State Department and Pentagon documents about the U.S. wars in Iraq and Afghanistan. After Manning refused to answer questions, U.S. District Judge Claude Hilton ordered her to be immediately jailed until she agrees to testify—or until the grand jury wraps up its work. Last year, prosecutors inadvertently revealed they’ve indicted WikiLeaks founder Julian Assange under a sealed indictment, but the charges against Assange remain unknown.