Six people with disabilities died unnecessarily in U.K. hospitals due to lack of communication, according to a charity group. The group says the deaths highlight “institutional discrimination” against people with disabilities within that country’s national health service.

In one case, a man with Down syndrome starved when he wasn’t fitted with a feeding tube after suffering a stroke. In another instance, a woman with communication difficulties was denied potentially life-saving cancer treatment because she was unable to consent, reports The (U.K.) Guardian.

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