A man killed in a fiery car crash in Ipswich is suspected to have been involved in two robberies shortly beforehand.
"There were a couple of robberies near to this traffic crash and we're investigating whether or not this gentleman had any involvement in those," Inspector Keith McDonald said.
A 30cm long knife was used in both robberies which netted the thief a diabetic kit and a bumbag that contained some money.
Insp McDonald said the 26-year-old man died at the scene.
"At 2.25am, police were notified that a car had crashed at the intersection of Albert and Audrey Streets," a Police statement read.
"The crash resulted in the car catching fire which was extinguished prior to police arrival.
"A service station on Railway Terrace was robbed at 2.10 and a further robbery of a taxi driver occurred in the carpark of a fast food restaurant on Church Street, Goodna at 2.20am.