US Department of State.

Reports.
Religious groups not approved by Russia face restrictions in Donbas – U.S. State Department report May 13, 2021
Reports.
Звіт Держдепу США про порушення прав людини у Криму і Донбасі March 31, 2021
Reports.
The U.S. State Department: nonstate groups imperiled religious liberties in areas of eastern Ukraine controlled by Russian-backed separatists October 14, 2015