Owen Smith's resignation as Shadow Work and Pensions Secretary means all three Welsh MPs who served in Jeremy Corbyn's Shadow Cabinet have quit the Labour front bench.
The former Shadow Leader of the Commons, the Rhondda MP Chris Bryant, was the first to go. He resigned last night, followed by the Shadow Welsh Secretary and Llanelli MP Nia Griffith this morning.
Mr Smith, who's MP for Pontypridd, has now joined them and warned that Jeremy Corbyn and his team of advisers risk splitting the Labour party.
Resignations by shadow junior ministers include Caerphilly MP Wayne David, Torfaen MP Nick Thomas-Symonds. Merthyr Tydfil MP Gerald Jones and Clwyd South MP Susan Elan Jones, who was Nia Griffith's deputy.
Watch Alexandra Lodge's report here: