As Extinction Rebellion protesters and police tussle for control of Oxford Circus, video has emerged of officers dragging two participants along the ground near Regent Street on Friday. The Met has come under increasing pressure to crack down on the demonstrators who have blocked transport networks in the capital in recent days. Extinction Rebellion has called for non-violent civil disobedience to oblige the British government to reduce net greenhouse gas emissions to zero by 2025 and stop what they call a global climate crisis.