Relatives wailed in grief or stared stoically as flowers were placed on 20 caskets at a funeral Mass on Tuesday for the latest group of inmates who died in Haiti's largest prison, most without ever having been convicted of any crime.

Marie Lumane Laurore broke into piercing screams as she collapsed in a church pew before the coffin of her son, Eddy. The 30-year-old inmate fell ill with tuberculosis and severe anaemia while he was jailed in Haiti's filthy and overcrowded National Penitentiary on a rape charge with no trial in sight.