Australian Poilce

Australia lorry crash: Four police officers killed in Melbourne

The police chief for the state of Victoria said it was the worst loss of life in the history of the state's police force.

Officers had pulled over a car for speeding on a motorway when the lorry ploughed into them, officials said.

The driver of the car - a Porsche 911 sports car - fled the scene and is being sought by police.

Victoria Police Chief Commissioner Graham Ashton said the lorry driver was under guard in hospital and would be tested for alcohol and drugs.