Lord Falconer has resigned from the shadow cabinet, the same day that nine of his colleagues have either resigned or been sacked.
Falconer was the shadow secretary of state for Justice and shadow Lord Chancellor.
The leader of the UK's biggest trade union has said the country is 'riven' as a result of the EU referendum.
Len McCluskey told ITV News that the trade unions can help broker a peace deal and reunite the party now the "coup has failed".
Labour leader Jeremy Corbyn said he would 'reach out' to MPs that oppose his leadership but said they should 'respect democracy'.