Dublin City Councillor Anthony Flynn, who was also the founder of the Inner City Helping Homeless organisation, has died.
The Independent Councillor, who was in his 30s, was a prominent media contributor on the issue of homelessness in the capital after establishing the organisation in 2013.
Mr Flynn had been suspended from ICHH earlier this month following allegations of a serious nature.
He was found dead in a property in East Wall in Dublin this afternoon.
In a statement, gardaí said they were investigating all the circumstances, but it is understood that his death is not being treated as suspicious.
Mr Flynn was elected to Dublin City Council in 2019 as Independent Councillor for the north inner city.
In a statement, Dublin City Council said it was "saddened to hear of the untimely death" of Mr Flynn.
"The Lord Mayor, Alison Gilliland, on behalf of Dublin City Council, extends her deepest condolences to his family and friends at this difficult time," it added.
The Chair of Inner City Helping Homeless has described Mr Flynn's death as a "tragic loss".
In a letter to staff and volunteers at the charity, David Hall said the news of his death was heartbreaking and a source of deep shock.
He said Mr Flynn was a person who passionately cared about the plight of the homeless and fought to give them a voice and a home.
Mr Hall said in founding ICHH he had turned that belief into action.