Brisbane police were investigating the circumstances of the crash.

A seven-month-old boy has died in hospital in Australia after the pram he was in was struck by a reversing 4WD driven by his mother at a funeral on Brisbane's southside.

The accident happened about 1.50pm as a family attended a funeral at a community Catholic Church centre in St Paul's Drive in Woodridge.

The infant was rushed to Lady Cilento Children's Hospital at Woolloongabba in a critical condition.

St Paul's Drive is a cul-de-sac that runs off Jean Street at Woodridge.

Police are now investigating the circumstances of the fatal accident.

"The preliminary information indicates that around 2pm, a pram containing a seven-month-old boy was struck by a reversing vehicle on St Paul's Drive," the police statement reads.

The boy's mother driving the car was not physically injured, but was understood to be distraught.

Senior Sergeant Tony Jackson told the ABC that the Brisbane woman was leaving a funeral at a Catholic Church on the street when she backed over the pram.

He said it was a terrible tragedy.

"The woman is being cared for by police and is assisting them with their investigation," Jackson said.

"It's a timely reminder to parents if they have children that are in prams or walking around vehicles [to] ensure that they know exactly where they are."

Jackson said police were not sure whether the pram was on the footpath or on the roadway behind the vehicle.

Queensland Police's Forensic Crash Unit investigations were continuing.