Prime Minister Scott Morrison cancelled his campaign events on Thursday afternoon after a car accident involving his security detail.
The car, which was carrying two federal police and two Tasmanian police officers, was following the Prime Minister when it rolled near Elizabeth Town in northern Tasmania.
In a statement, the Prime Minister's office said the four officers had been taken to hospital for further assessment.
Mr Morrison, who has been campaigning in Tasmania, was not injured or involved in the accident.
Tasmania Police said the crash involved the unmarked police car and a Mitsubishi Triton.
In a statement they said initial enquiries indicated "the Triton has collided with the rear of the police vehicle, while attempting to merge".
In a statement on his Facebook page Mr Morrison sent his best wishes to the officers and their families.
"I am relieved they have all been safely transferred to hospital where they are receiving care," Mr Morrison said.
"Our police do an amazing job in keeping us all safe. I am incredibly grateful to all the police who look after me and my family.
"We have all got to know each other over the years. They are selfless, professional and incredibly generous. I hope to hear further good news about their condition.
"Jen and I also send our thanks, love and best wishes to them and their families."
Labor leader Anthony Albanese wished the officers involved in the crash a quick recovery.
"They do a fantastic job and I wish all a speedy recovery," he said.