People in NSW urged to delay non-essential travel to SA as state battles coronavirus outbreak

People in NSW have been asked not to travel to South Australia unless it's essential but NSW Premier Gladys Berejiklian insists the borders remain open.

Medical staff taking details from people who are queuing at the COVID-19 Testing facility at Parafield Airport in Adelaide Source: AAP

People in NSW should delay travelling to South Australia "as a precaution", as the state grapples with a potential second wave coronavirus outbreak, Gladys Berejiklian says.

The premier said NSW's borders "are completely open but if it's not essential travel think about whether you want to go in the next few days".

She offered the advice after the number of confirmed virus infections linked to the Parafield cluster in Adelaide northern suburbs grew to 20 on Tuesday. Another 14 potential cases are still to be cleared.

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