President Joe Biden will establish a national monument to honour Emmett Till, a black teenager who was lynched in 1955 in Mississippi, as well as his mother.

Mr Biden will sign a proclamation today Tuesday which is Till’s birthday, 25 July.

The Emmett Till and Mamie Till-Mobley National Monument will include three separate sites in two states – Illinois and Mississippi.

Till’s lynching and the activism of his mother Mamie Till-Mobley helped galvanise the civil rights movement.

Emmett Till, a 14-year-old from Chicago, was visiting family in Mississippi when he was brutally beaten and killed by two white men, Roy Bryant and JW Milam, after a white woman Carolyn Bryant Donham accused Till of harassing her at a store.