Two new local COVID-19 cases are under investigation in Queensland but health officials stress there is low risk to the community.
Both are truck drivers whose infections were detected by New South Wales health authorities.
"We are not overly concerned about these two," Queensland Premier Annastacia Palaszczuk said today.
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Exposure sites linked to the cases will be listed this afternoon.
Another case acquired overseas was detected in hotel quarantine and three cases were detected on a marine vessel.
Chief Health Officer Jeannette Young said the risk the truck drivers pose to the community "is very low".
"These two truck drivers were superb. They did their routine testing and extra testing," Dr Young said.
"They stayed at home when they weren't driving the truck."
As the truck drivers visited several petrol stations, exposure sites will be added to the Queensland Health website.
Police intercepted 5000 cars and heavy vehicles at the New South Wales-Queensland border overnight.
Of those, 199 were refused entry into Queensland and 17 were essential workers who were not yet vaccinated.
Essential workers who cross the border into Queensland must be vaccinated with at least one dose of a COVID-19 vaccine.