 Ms Collins, 31, was pronounced dead at the scene |
A post-mortem examination on Natasha Collins, the fiancee of CBBC presenter Mark Speight, was "inconclusive", police have said. Further toxicology tests will be carried out on the 31-year-old actress's body.
Mr Speight was arrested on Thursday after finding her dead in the couple's flat in St John's Wood, north London.
He was bailed until the first week of February on suspicion of murder and supplying cocaine, which he has denied.
Mr Speight, who was born and raised in Wolverhampton, is best known for CBBC programme SMart, which he has hosted since 1995.
The couple met on the BBC children's series See It Saw It.
A spokeswoman for Mr Speight said he was "absolutely distraught" at her death.
"He is assisting police with their enquiries and had nothing to do with Natasha's death," she added.
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