A review is underway into two deaths in South Australia amid delays in ambulance arrivals, pushing health back into the state election spotlight.
The Ambulance Employees Association says overnight on Monday an elderly person died after waiting 56 minutes for an ambulance while a person in their 20s also died after waiting 45 minutes.
It said in both cases ambulances should have arrived within 16 minutes.
Premier Steven Marshall said the deaths were very sad news and a review was underway.
"My thoughts and condolences are with the families and friends of those two people," he told reporters.
"Obviously, there is a review which is underway at the moment. We'll wait for that result.
"We don't know whether the delay in getting ambulances there was a contributing factor."
Mr Marshall said the Liberal government had a comprehensive plan to end ambulance ramping and delays across SA, and it was vital the party was returned at Saturday's poll.
"Obviously we want to end ramping in South Australia, we want to end delays through our hospital system and that's why we've got record investment into this area at the moment," he said.
"Since coming to government we've been massively investing in our health system."
Opposition Leader Peter Malinauskas said the hearts of all South Australians were breaking again with the news of the two deaths.
"How much longer are we going to allow this to continue?" he said.
"The fact that South Australians are frequently calling triple zero and not getting an ambulance on time is a representation of a crisis that is costing people's lives."
In another health announcement, Labor promised $900,000 over three years to support three new 24-hour community pharmacies across Adelaide to provide medication and care to further help reduce pressure on hospitals.
The funding will support the round-the-clock operations at three locations, one in Adelaide's north, one in the south, and one in the city centre.
Pharmacy staff will also get access to mental health training to help identify people with issues as early as possible.
South Australians go to the polls on March 19.