The city of New Orleans has announced it will apologise for the lynching of 11 Italian-Americans in 1891.
Some of the victims had been accused of murdering a police chief, but were acquitted after a trial.
Angry about the verdict, a mob of racist vigilantes in the city attacked and publicly hanged them.
Mayor LaToya Cantrell is due to apologise for the killing – believed to be the largest recorded lynching in US history – on 12 April.
Sources: