LONDON — The Metropolitan Police faced growing pressure to explain their actions Sunday after clashing with attendees at a vigil for a woman allegedly slain by one of their officers.

The calls for accountability were heightened by widely shared images of a woman who was at the event Saturday being pinned to the ground and handcuffed by male officers. One photo appears to show Patsy Stevenson shouting as male officers hold her hands behind her back.

Stevenson was among thousands who attended the vigil Saturday in London’s Clapham Common for Sarah Everard, the 33-year-old marketing executive whose kidnapping and killing stunned the nation.

Wayne Couzens, a 48-year-old officer who joined the force in 2018, has been charged in Everard’s death.

With England still in lockdown for the coronavirus pandemic, police had urged people to stay away from the planned vigil. Organizers canceled the event after talks with police about its legality and safety broke down. But people went anyway.

London police faced backlash for their heavy-handed tactics in breaking up a March 14 vigil for Sarah Everard, whose suspected killer is a police officer. (Reuters)

Metropolitan Police Commissioner Cressida Dick, facing calls to step down from the most powerful policing position in Britain, said Sunday she was not considering resigning.

“We’re still in a pandemic, unlawful gatherings are unlawful gatherings, officers have to take action if people are putting themselves massively at risk,” she told reporters.

But many questioned the way police handled the event as the photos of officers handcuffing Stevenson went viral. Victoria Atkins, the Home Office minister for safeguarding, was quizzed about the images on Sunday morning talk shows.

“You’ll be very familiar with the picture that has been shown absolutely everywhere. What did you think when you saw it?” asked the BBC’s Andrew Marr.

“I found it very upsetting, of course,” Atkins said.

Atkins told Sky News’s Sophy Ridge that the photograph was “something that the police will have to explain in their report to the home secretary.”

The police on Sunday defended their handling of the event.

“We absolutely did not want to be in a position where enforcement action was necessary,” assistant police commissioner Helen Ball said. “But we were placed in this position because of the overriding need to protect people’s safety.”

“Hundreds of people were packed tightly together, posing a very real risk of easily transmitting covid-19,” she said. She said “a small minority of people began chanting at officers, pushing and throwing items.”

Among the thousands who attended the vigil peacefully — including Catherine, Duchess of Cambridge, who left flowers — a Post reporter saw a small group of people hurling insults and objects at the police. One person smashed the rear window of a police van. Many shouted, “Arrest your own” and “Shame on you.”

As scenes of tussles from the vigil circulated online, politicians from across the political spectrum criticized police actions.

Police tried to disperse hundreds gathered in south London to honor the memory of Sarah Everard on March 13, hours after an officer was charged with her murder. (Reuters)

Home Secretary Priti Patel called the scenes at the vigil “upsetting” and said she had requested a full police report on the day’s developments. London Mayor Sadiq Khan said police chiefs had failed to provide him with a satisfactory explanation of events and called for an independent investigation.

Police said four people were arrested for “public order offences and for breaches of the Health Protection Regulations.”

Liberal Democrat party leader Ed Davey was among those who called on the police commissioner to resign. Others said what’s needed is a more serious look at how to handle demonstrations during a pandemic.

Jess Phillips, the opposition Labour Party’s point person on domestic violence, said there were “many missed opportunities throughout the day for police to work with organizers to create a completely safe vigil so that people could go and have a moment of sorrow and a moment of resistance.”

Everard’s death has prompted a national outpouring of grief and anger. She was last seen at 9:30 p.m. on March 3, walking home from a friend’s house in south London. Her body was later found in woods in Kent.

Couzens has been charged with kidnapping and murder in her death. For the past year, his main job was patrolling diplomatic premises, mainly embassies. He previously held posts at Downing Street and the Palace of Westminster.

On March 13, Londoners paid their respects to Sarah Everard, 33, whose body was discovered after her disappearance. (Karla Adam, Blair Guild/The Washington Post)

Women have shared stories online about their experiences feeling scared when walking alone at night and are asking why more isn’t being done to tackle violence against women.

Demonstrators took to the streets again on Sunday. Several hundred gathered outside London police headquarters before marching to Parliament Square to hold a “lie in.” Some said they were planning another protest on Monday.

Stevenson said she attended the vigil Saturday to support women who “cannot walk down the streets by themselves because of the fear of men.”

She called the police actions “disgraceful.”

“Before then, it was a peaceful protest,” she told the left-wing website Counterfire. “I was arrested by police for standing there. I wasn’t doing anything. They threw me to the floor. They have pictures of me on the floor being arrested. And I’m 5-foot-2, and I weigh nothing.”

Despite the cancellation, she said, many attended “because people were angry.”

Correction: A previous version of this article misspelled the first name of Sophy Ridge of Sky News. This version has been updated.