UPDATE 3.30PM: A MAN has been killed after a vehicle ran a red light, crashed and flipped at a busy Ipswich intersection this afternoon.

The Forensic Crash Unit is investigating the incident, which happened at the corner of Moffatt St and Warwick Rd about 12.50pm.

Police said a vehicle headed west on Moffatt St is believed to have run a red light, clipping another car that was headed south on Warwick Rd.

One of the vehicles flipped onto its roof. There were five people inside, with four unharmed.

A man is in a critical condition following a serious crash at Ipswich on Thursday, July 2.
A man has died following a serious crash at the corner of Moffatt St and Warwick Rd.

A man aged 36, from Raceview, was critically injured and later died.

Police closed the intersection as investigations got under way.

EARLIER: POLICE are investigating the cause of a crash that has left a man critically injured this afternoon.

It is believed one of the vehicles involved in the crash on the corner of Moffatt St and Warwick Rd may have run a red light before clipping another vehicle.

One of the vehicles involved in the crash flipped onto its roof after the impact.

Inspector Keith McDonald said there were five people in the overturned car, four of which were not harmed but one, a man aged 36, was critically injured.

"We have two vehicles heading south on Warwick Rd, and one vehicle heading west on Moffatt St," Insp McDonald said.

"It appears as though one of the vehicles has gone through a red light, but we will not confirm which vehicle yet."

Police said the occupants of the other vehicles escaped with only minor injuries.

The intersection was blocked off while police from the forensic crash unit commenced investigations.