A 23-year-old Romanian woman found stabbed to death in a flat in Coventry has been named as Georgiana Stuparu.
She was found dead in a ground-floor flat on 30 January. A 25 year-old man and a 21-year-old woman were arrested on 1 February and are still being questioned by police.
West Midlands Police were granted extra time to keep them in custody.
Stuparu, who is also known as Yudha Marin, had been stabbed in the stomach in a flat in Foleshill's Culworth Court.
She was pronounced dead at the scene and a post mortem determined she had died from a stab wound to the abdomen.
Three men were initially arrested but two of them, aged 26 and 34, were released without charge. A 23-year-old has also been bailed pending further enquiries.
A police statement said: "Detectives are still keen to hear from anyone who was in the area of Culworth Court on Wednesday evening and who may have seen or heard anything suspicious."
According to the Coventry Telegraph, police officers were searching the undergrowth for evidence and were carrying out door-to-door enquiries.
They also towed away an old blue Ford Fiesta that had foreign number plates.
A number of people living nearby said the area was dangerous. The newspaper said several locals had complained about the lack of security at the flat block.