Six people were injured after a car crash and alleged domestic violence attack at Engadine in Sydney’s south yesterday morning. Police claim a 58yo man was stabbing his 48yo partner with a box cutter while driving “erratically” along the Princes Highway before crashing into another car – injuring 2 people inside – around 9am. Witnesses say the man “was ranting” that the woman “changed the radio station.” Assuming it was a regular crash, several bystanders went to help… One of them was Cronulla Sharks Chairman Steve Mace, who helped the woman out of the car despite the man “slashing” at them. A police officer is in serious condition after being cut while arresting the man, who ran from the scene after giving himself “self-inflicted stab wounds”. The woman is in critical condition in hospital. PM Anthony Albanese called the incident “shocking and distressing” and thanked the “brave members of the public who helped at the scene”.