A 32 year old woman was arrested last night on suspicion of murder and currently remains in police custody. Two men arrested have been eliminated from the enquiry.
A post mortem will begin later today to try and identify how Catherine died.
Detective Chief Inspector Simon Crisp from Avon and Somerset Police said:
"We still need information from members of the public and those people who knew Catherine or knew of her. It is imperative we get a full picture of her life and you may have information that could help."
The boyfriend of a woman, 23, whose body was discovered in a burning car has appeared in court charged with conspiring to murder her.
A woman has appeared in court charged with conspiracy to murder. The body of Catherine Wells-Burr was found in a burnt out car last week.
Detectives investigating the death of Catherine Wells-Burr have charged a 32-year-old woman with conspiracy to murder.