A deaf TikTok star who died after taking a poisonous substance that she ordered online was failed by mental health services, a coroner said.

Imogen Nunn, 25, died in Brighton, East Sussex, on New Year's Day 2023, having struggled with her mental health since she was 13.

Ms Nunn, who was born deaf, raised awareness of hearing and mental health issues on her social media accounts, which attracted more than 780,000 followers.

She ordered a lethal chemical substance online on November 14, which was delivered to her home address on November 21.

Three days later, she contacted her support worker at the deaf adult community team and told them she had 'bought something online that she planned to take to end her life'.