Police have been given extra time to question a man arrested on suspicion of murdering a mother-of-three who was stabbed to death in a taxi.
The victim, named by police as 22-year-old Natasha Trevis, from Weoley Castle, Birmingham, was killed yesterday morning.
A post-mortem examination showed she died from multiple stab wounds.
A 28-year-old man - named by sources as Junior Saleem Oakes, also known as as Mohammed Saleem (Salim) Junior Oakes - has been in police custody over the knife attack for 24 hours after he was arrested in a garden last night.
Police said the victim's children were all young but gave no further details.
Yesterday, officers said they believed she had been in a relationship with her attacker.
The incident happened inside the taxi - a light-coloured Peugeot - at 8am in Dimsdale Road in Northfield, Birmingham.
The taxi driver called 999 and residents said paramedics worked for 30 minutes to save Miss Trevis but she was in cardiac arrest when they arrived and died at the scene.
A hunt to find the killer was launched and a man was arrested shortly after 6pm.
Police said the suspect was taken into custody after he was found in the garden of a house in Allens Farm in south Birmingham.
Detective Chief Inspector Wayne Jones described the investigation as "complex and dynamic".
A force spokesman said: "Detectives have until tomorrow morning to question the man who was arrested on suspicion of murder.
"Specialist liaison officers from West Midlands Police continue to support her family during this traumatic time."