A popular YouTube personality has been found dead after posting a video in which he talked about suicide.

New York-based Etika, 29, whose real name is Desmond Amofah, had been missing since Thursday last week.

Police said on Tuesday that he had been found deceased. His belongings were found on Manhattan Bridge on Monday.

Mr Amofah, who became popular streaming video games online, had publicly struggled with mental health issues for the past year, concerning fans with suicidal messages posted on Twitter.

He made suicidal comments online in October last year and April this year, when he was also detained by police while streaming on Instagram Live.