A 22-year-old male was arrested in the Colindale area during this afternoon - Thursday 09 May 2024 - on suspicion of murder.
He remains in custody at an undisclosed North London Police Station while being questioned.
Detective Superintendent Tony Bellis from the North West Command Unit, responsible for policing Edgware, said:
"This is a significant development in this investigation and comes as a result of fast-time work from specialist detectives working alongside local officers. The investigation remains in its early stages, and we continue to work to establish why this incident took place, including whether the person responsible was known to the woman who died. I would urge people to refrain from speculating about the circumstances while this work is ongoing."
Detective Superintendent Bellis, concludes:
"A family has been left devastated by this shocking attack and my thoughts are with them at this unimaginabley difficult time."
A woman – believed aged in her 60s – was treated for wound injuries caused from being stabbed.
Despite the best efforts of all the Emergency Services, and specialist medical personnel from London Ambulance Service and London's Air Ambulance, the woman passed away at the scene.
Work continues to inform her next of kin.
A crime scene is currently in place at the location.
A Metropolitan Police spokesperson has confirmed that anybody with information which could assist police with this investigation is asked to phone Edgware Police on 101 and quote CAD3105/9MAY.
Elsewhere, you can also provide information, anonymously, to the independent charity CrimeStoppers on 0800 555 111.