The Pentagon stopped a controversial plan to offer detainees at Guantanamo Bay access to COVID-19 vaccines.

“No Guantanamo detainees have been vaccinated. We’re pausing the plan to move forward, as we review force protection protocols. We remain committed to our obligations to keep our troops safe,” Pentagon press secretary John Kirby said in a tweet Saturday.

The prospect of 40 Guantanamo Bay detainees, including accused 9/11 ringleader Khalid Sheikh Mohammed, getting vaccinated before many people across the United States generated outrage among Republicans. Medical workers at the high-security prison complex first began vaccinating the approximately 6,000 residents on Jan. 8, and the New York Times reported that detainees might have gained access to the vaccines as early as next week.