POLICE have identified the man who died from a stab wound on Thursday as 32-year-old Toowoomba man Joel Walters.
Mr Walters was a passenger in a Mitsubishi Magna when he was stabbed in the lower left leg on Sunday night in North Toowoomba.
At a media conference yesterday morning, regional crime coordinator for southern region Detective Inspector Darrin Shadlow said no-one had been charged over the stabbing incident, but police investigations were continuing.
He said a number of people were being questioned in regards to the matter. Police are treating the death as a murder investigation.
"We have interviewed and spoken to a number of persons of interest in relation to the matter," he said.
"The investigations are ongoing and we do seek information from members of the public."
Det. Insp. Shadlow said Mr Walters was driven to Toowoomba Hospital on Sunday night by his girlfriend
He said police were unable to speak with Mr Walters before he died on Thursday.
"Unfortunately, the victim had lost a lot of blood prior to arriving at the hospital and was subsequently in an induced coma up until he passed away," he said.
Police have seized the car in which Mr Walters was stabbed and are awaiting results of forensic testing.
Police are expecting the results of a post mortem examination today which should determine whether a pre-existing medical condition also contributed to Mr Walters' death.
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