Detectives investigating the murder of 39-year-old mother Aliny Mendes have been given more time to quiz a suspect.
Ms Mendes died following a stabbing in London Road near Cheam on Friday evening,
Following this, police have been given more time to question a man on suspicion of murder.
A statement from Surrey Police said: "A man in his 40s from Epsom remains in police custody after detectives were granted more time by Guildford Magistrates' Court to complete inquiries following his arrest on Friday.”
Previously another man in his 50s from London was arrested on suspicion of assisting an offender but they have since been released with no further action being taken against them.
Detective Chief Inspector Mark Chapman added: "We are working incredibly hard to piece together what happened during this shocking incident, and are doing all we can to support Aliny's family.”
He stated that more officers and PCSOs have been deployed in the area following the incident and appealed for witnesses or anyone with further information to contact the force.
On Saturday evening, Ms Mendes’ sister paid tribute to her and said: “My sister was lovely, always thinking about everyone but mostly her children. She had a wonderful heart and there was no one else like her. She was a caring sister and worried about everyone.
"She was always making sure everyone was ok. She tried to help everyone where she could. She loved to cook and would organise surprise parties for friends and family giving cakes and presents she was loved by everyone. Everything she did was for the love for her children.”
A fundraiser set up to support her children and also to have her body repatriated to be with her friends in Brazil has raised more than £35,000.
Miss Aliny was described on this page as a “dear friend, colleague and mother of four adored children”.
“Her friends, church community, colleagues and her family in Brazil and other parts of the world are in total shock at the loss of this wonderful person,” a statement on the page added.
Ms Mendes was stabbed just yards from Meadow Primary School.
London Road and the adjoining Sparrow Farm Road were cordoned off as police investigated.
The area where the attack took place is a village on the south-west London and Surrey border.
Anyone with information should contact Surrey Police on 101 quoting reference PR/45190014238.
