A woman has been killed by a falling tree in the Adelaide parklands in North Adelaide.
The Metropolitan Fire Service (MFS) said crews were called to University Oval near War Memorial Drive at about 2:30pm, but were unable to save the woman.
MFS commander Declan Dwyer said it appeared the woman, aged in her mid-twenties, was sitting under the tree when it fell.
"We got here within just a few minutes and knowing that there was someone trapped underneath … but unfortunately there was nothing we could do," Mr Dwyer said.
"It appears at this stage she was doing nothing more than sitting on the lawn having something to drink or eat."
Mr Dwyer said the tree was recently inspected by the Adelaide City Council.
SA Police said it will launch an investigation into the incident.
Adelaide Lord Mayor Jane Lomax-Smith extended her condolences to the woman's family.
"I express my sincere condolences to the family and friends of the young woman tragically killed in what appears to be a shocking accident," Ms Lomax-Smith said.
"Council staff are assisting authorities at the scene and we are doing our best to determine what has happened.
"Unfortunately, I can provide no further information at this time as the circumstances which led to this tragic event will be the subject of an official investigation."