The cause of death for a mother and grandmother who was murdered and left in an allotment lock-in has now been revealed.

Lea Adri-Soejoko, 80, was discovered at Colindale allotments in Sheaveshill Avenue in the early hours last Tuesday (Feb 28), less than an hour after she had been reported missing.

Following an autopsy at Northwick Park Hospital last week, police have now revealed Mrs Adri-Soejoko was strangled.

While 40-year-old Rahim Mohammadi has been arrested and charged with her murder, police enquiries into the incident continue.

READ MORE: Shoreditch man charged with murder of Lea Adri-Soejoko, found dead in Colindale allotments

An incident room under Detective Chief Inspector Noel McHugh is trying to build a timeline of events on Monday, Feb 27, leading up to the disappearance of Mrs Adri-Soejoko, also known by her maiden name as Lea Hulselman.

It is known she left her home in Colindeep Lane at some point in the day but it is not known where she went or if she was alone.

She was wearing black wellington boots with white spots and pink piping around the sole and top of the boot, a navy blue quilted jacket and grey bottoms.

DCI Noel McHugh said: “As our enquiries continue, I am now keen to speak with anyone who knew Lea.

“Did you speak with her in the days leading up to her murder, or visit her at home?

“Did she seem troubled or speak to you about any concerns she may have had?

“If you own an allotment, or help on a friend's patch, I would like you to come forward and speak to us.

“Lea was a mother and grandmother and secretary of the allotment association.

“She was very well-known in the area and always in and out of the allotments, a pillar of the community.”

READ MORE: Rough sleepers hunted over murder of allotment pensioner

Police will be in the area of the allotments between 2pm and 6pm today speaking with motorists and the local community in the hope someone who has yet to come forward has information.

Anyone who can help is asked to contact police at the incident room on 020 8785 8099, via 101 or @MetCC or call Crimestoppers anonymously on 0800 555 111.