Deputy Premier Roger Cook has announced he has tested positive for COVID-19.
Cook, who is now in isolation, made the announcement via social media on Tuesday afternoon.
“This afternoon I returned a positive result for COVID-19,” he said.
“I will now be isolating at home for the next week.
“More than 60,000 people in Western Australia have COVID-19 today. I am just one of them.
“The WA community has been exceptional in responding to the COVID-19 pandemic for more than two years.
“As I’ve said many times, we will continue to get through this together.”
It comes as WA hit a record number of daily infections in a worrying sign since restrictions eased.
WA Health reported 12,390 new infections overnight, taking the total number of active cases to 61,775.
There are now 286 people with COVID-19 in hospital, including eight in intensive care.
Premier Mark McGowan reiterated to reporters on Tuesday that the surge in COVID-19 cases was not as relevant as the number of hospitalisations, which had remained steady.
Meanwhile, the McGowan Government will extend its special powers until January 3 next year so it can keep enforcing Covid-19 rules, such as mandatory masks in hospitals and seven-days of isolation for positive cases.