LONDON, Oct. 20 (Xinhua) -- Tens of thousands of people marched in central London demanding a final say on Britain's departure from the European Union.

A placard is seen during the "Together for the Final Say" event at the Parliament Square in London, Britain, on Oct. 19, 2019. (Xinhua/Han Yan)

People take part in the "Together for the Final Say" event at the Parliament Square in London, Britain, on Oct. 19, 2019. (Xinhua/Han Yan)

A protester with his face painted in the colors of an EU flag prepares to attend the "Together for the Final Say" event at the Parliament Square in London, Britain, on Oct. 19, 2019. (Photo by Stephen Chung/Xinhua)

A protester holding a placard prepares to attend the "Together for the Final Say" event at the Parliament Square in London, Britain, on Oct. 19, 2019. (Photo by Stephen Chung/Xinhua)

A protester holding a placard with slogans prepares to attend the "Together for the Final Say" event at the Parliament Square in London, Britain, on Oct. 19, 2019. (Photo by Stephen Chung/Xinhua)

People react to the latest result of the amendment during the "Together for the Final Say" event at the Parliament Square outside the Houses of Parliament in London, Britain, Oct. 19, 2019. (Xinhua/Han Yan)

A woman with her face painted in the colors of an EU flag takes part in the "Together for the Final Say" event at the Parliament Square in London, Britain, on Oct. 19, 2019. (Xinhua/Han Yan)

A protester prepares to attend the "Together for the Final Say" event at the Parliament Square in London, Britain, on Oct. 19, 2019. (Photo by Stephen Chung/Xinhua)■