Hundreds of protesters are marching through the centre of Manchester, calling for the Tories to be kicked out of power, as the party gathers in the city for its annual conference.
Waving placards and chanting "Oh Jeremy Corbyn", the People's Assembly took to the streets in protest at austerity.
Public and Commercial Services Union boss Mark Serwotka called for a general strike on public sector pay to "bring the Tories down", saying Tory policies were "literally killing people".
Conservative cuts to health and safety regulations preceded the Grenfell Tower fire disaster, he told the crowd.
"David Cameron told us he has slayed the health and safety monster, but we now know they slayed men and women and children as they slept in their houses," he said.