Defence Force personnel are being deployed to South Australia's border with Victoria amid the continuing surge in coronavirus cases in Melbourne.
Members of 16 Regiment, Royal Australian Artillery from the Woodside barracks, in the Adelaide Hills, will be stationed at Berri and Mt Gambier, and will begin working on border checkpoints from Sunday.
They will help police monitor people coming across the border, ensuring they have essential traveller status or other exemptions.
It follows SA's decision to impose a hard border closure with Victoria to help prevent a new coronavirus outbreak.
Anyone who has been in Victoria over the past two weeks is also being asked to get tested, regardless of whether they have symptoms.
And any locals returning to SA from Victoria in the coming days will be asked to take a coronavirus test within 24 hours and again on day 12.
They will be handed a mask when they cross the border, which they will be asked to wear when in contact with other people, and will also be required to self-quarantine for two weeks.
The state government says it is still planning to drop quarantine restrictions for people coming from NSW and the ACT on July 20, but that will depend on any increases in infections in those two areas and the ongoing situation in Victoria.
On Saturday, SA reported no new coronavirus cases and no longer has any active infections.
Australian Associated Press