Human Rights Watch issued a statement on Wednesday calling on the Russian authorities to properly investigate reported abuses at a psychiatric facility in the Bryansk region near the border with Belarus.

In mid-July, Alexander Kupriyanov, a psychiatrist in the region anonymously received video footage of patients in the Trubchyovsk Psycho-Neurological Institution chained to their beds and chairs.

The psychiatrist told HRW researchers he had been receiving reports about the mistreatment of residents at the facility for years.

Former staff members have subsequently spoken on state television to verify conditions at the clinic saying “unruly” patients were sometimes shackled or that residents were sometimes chained to each other during mealtimes.