Three new cases of COVID-19 have been confirmed in Tasmania bringing the states total to 62.
Acting Director of Public Health Dr Scott McKeown said all three of the cases were related to cruise ships and overseas travel.
Coronavirus: All the latest updates on COVID-19 for Tasmania
"Two of the cases are related to recent overseas travel and one is linked to the Voyager of the Seas cruise ship," he said.
"One of the further cases is from the North West, one from Northern Tasmania and one from Southern Tasmania."
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He said investigations into a case announced this morning were still ongoing.
"Public Health Services is currently identifying and contacting all close contacts of these cases and ensuring quarantine arrangements and monitoring," Dr McKeown said.
He said an investigation determined a health worker diagnosed on Friday spent no more than 30 minutes at work while infectious.
"The investigation into how the healthcare worker contracted the infection is ongoing," Dr McKeown said.
"A small number of people on the same shift have been identified as close contacts and are in quarantine and monitored by Public Health Services."
Anyone requiring more information about coronavirus should contact the National Coronavirus Health Information Line on 1800 020 080.