Demonstrators, angered by male violence against women and police practices, protested in the wake of Sarah Everard's murder.
Everard, 33, was kidnapped while returning to her home in South London on the 3rd of March, and a police officer was accused of kidnapping and killing her, sparking controversy over how British society handles male violence against women.
Protesters gathered outside Parliament House in Westminster, where lawmakers began debating a bill on Monday. Opponents said it would "give the police a lot of powers to restrict peaceful protests," days after police were criticized for using excessive force during a vigil at Everard.
The protesters disrupted traffic on Westminster Bridge for a short period before rallying in front of the Metropolitan Police headquarters in London, and walking to Johnson's office on Downing Street.