A nine-day occupation of London's Parliament Square starts with an overnight vigil to mark the International Day for the Eradication of Poverty, Press TV reported.
Anti-government campaigners from the "Occupy Democracy" camp rallied on Friday in front of the parliament to highlight the growing inequality in the UK.
"There is a crisis in our Westminster system of government. We elect politicians who do not represent us," a protester told.
"We are here in front of Westminster to say we want real democracy, and we want it now," activist John Sinha said.
The protesters called on the government to try to solve the problem of increasing inequality in Britain.
Members of the anti-poverty movement in the UK say they will continue to use all available tools at their disposal to force the establishment to do something about the stifling social and economic inequality in the country.