Police are continuing to question a serving officer on suspicion of the murder of Sarah Everard following the discovery of human remains.
The Metropolitan Police said on Wednesday night that remains had been found in an area of woodland in Ashford in Kent by detectives investigating the 33-year-old’s disappearance.
A serving police officer in the Parliamentary and Diplomatic Protection Command had earlier been arrested on suspicion of Ms Everard’s kidnap and murder.
She added: “But I completely understand that despite this, women in London and the wider public – particularly those in the area where Sarah went missing – will be worried and may well be feeling scared.”
The Met said the arrested officer’s main job was uniformed patrol of diplomatic premises, but would not specify where he had worked. He was not on duty at the time of Ms Everard’s disappearance.
The officer, in his 40s, was also arrested over a separate allegation of indecent exposure, the Met said.
A woman in her 30s has been arrested on suspicion of assisting an offender.
In a statement, Ms Dick said: “The news today that it was a Metropolitan Police officer arrested on suspicion of Sarah’s murder has sent waves of shock and anger through the public and through the whole of the Met.
Investigators are continuing to work “around the clock” on what Ms Dick described as a “very fast moving” case.
The remains have not yet been identified and it could take some time to do so, the Commissioner added.
She said people living around Clapham and Tulse Hill could expect to see increased patrols in the area.
Multiple cars were taken away by investigators and a neighbour told the PA news agency a police officer lived at the address with his wife and two children.
Marketing executive Ms Everard vanished while walking home from a friend’s flat in south London on Wednesday March 3.
Ms Everard is thought to have walked through Clapham Common towards her house in Brixton – a journey which should have taken around 50 minutes.
She was last captured on a doorbell camera walking along the A205 Poynders Road towards Tulse Hill at around 9.30pm on March 3.
Organisers said: “It’s wrong that the response to violence against women requires women to behave differently. In Clapham, police told women not to go out at night this week. Women are not the problem.
“We’ve all been following the tragic case of Sarah Everard over the last week. This is a vigil for Sarah, but also for all women who feel unsafe, who go missing from our streets and who face violence every day.”