Two paramedics smashed the windscreen of their overturned ambulance and went to the aid of the occupants of the other vehicle after a collision at Caringbah.
The accident was one of two rollovers in Sutherland Shire yesterday (Monday) - the other involving a garbage truck at Sutherland
The accident which left the ambulance on its side occurred at the intersection of Taren Point Road and Captain Cook Drive just before 12.50pm.
Unable to open the doors, the two paramedics smashed the windscreen and climbed out.
Inspector Mathew Baxter, of NSW Ambulance, said "Paramedics were responding to an emergency situation with lights and sirens on when they were involved in an accident with another vehicle".
"With the wellbeing of the others involved in the crash at the front of their minds, the paramedics were able to get out of their overturned vehicle and ensure anyone else involved was being looked after," he said.
"It's important for drivers to be aware of emergency services vehicles on the roads who are often responding to life-threatening situations."
Multiple ambulance crews were dispatched to the scene.
Two occupants of the car, along with the two paramedics, were transported to St George Hospital with minor injuries.
The accident involving the garbage truck occurred on Linden Street Sutherland, just before 7am.
The truck rolled on to a guard rail, spilling garbage in front of a block of units.
Paramedics assessed the condition of the driver, but no injuries were reported and he did not need to be taken to hospital.
However, a big clean-up was required and there were extensive traffic delays.
Sutherland Fire and Rescue said in a Facebook post: "Nothing like a bit of Monday morning motoring mayhem to kick off the week".
"Traffic will be heavily affected heading west from The Grand Parade and Linden St Sutherland while this garbage truck is removed from the guard rail," the post said.
"Happily no one was hurt."