UPDATE: National cabinet has agreed to limit repatriation flights from India as that country's COVID-19 infection rate soars.
Mark McGowan will urge national cabinet to consider a cap on repatriating international arrivals from India following confirmation COVID-19 spread between guests at one of the state's hotel quarantine facilities earlier this month.
The cases, believed to have originated in a couple who had returned from India and spread to others quarantined on the same floor earlier this month, were recorded at the Mercure Hotel Perth.
Mr McGowan today said genome sequencing had linked the cases.
All guests who may possibly been exposed to the virus have now been moved to a different floor, while others who have left quarantine have been tested for COVID-19 and required to self-isolate until they return negative results.
None of these guests have returned positive results.
Mr McGowan today said health officials would investigate the matter further once all rooms on the floor had been vacated.
While the premier said the hotel was not the best option for quaranting returned travellers, it will still act as a low-risk quarantine facility for seasonal workers coming to Australia from Pacific nations.
Mr McGowan said health authorities had approved the facility for use despite the criticisms.
"The air in the corridor can get there because it comes from the hotel rooms; they're negative pressure rooms, and they also have windows that can open to outside," he said.
"But, the report said it could be used.
"We'd already made the decision to move it to become a hotel that would be used for seasonal workers because they're extremely low risk."
Today's news comes as India's management of COVID-19 has come under sharp scrutiny.
The country, the second largest in the world by population, recorded more than 290,000 cases on April 20 and has recorded about 183,000 deaths overall.
Mr McGowan raised the prospect of suspending flights from India this morning, arguing the move had nothing to do with the country but was a function of its high-risk status.
He said he would take the issue to national cabinet this afternoon.
"This is not an ideal situation ... but we're doing everything we can to protect the Western Australian public," he said.
There were two new cases of COVID-19 recorded in hotel quarantine overnight, bringing the state's total active cases to 28.