Yukon's chief medical officer says there is a fifth confirmed case of COVID-19 in the territory. Dr. Brendan Hanley said the test results came back on Saturday.

He said the fifth case is related to a "cluster investigation." Four of Yukon's five cases are considered part of a single cluster, he said, which health researchers typically define as an unexpectedly high number of related cases in a place and time.

"We may yet see another one or two cases related to these clusters, but we have also received a number of negative results," Hanley said.

Hanley said all of the five people diagnosed so far in Yukon are "doing well," and have not had to seek health care.

As of Monday, 688 Yukoners had been tested for COVID-19, and results from 90 of those tests were still pending.

Watch Monday's news conference here:

Last week, health officials named two places in Whitehorse — a church and a dental clinic — where a person or people later confirmed to have COVID-19 attended on certain days this month. Others who attended those places on those dates were asked to monitor themselves for symptoms.

Hanley said on Monday that notice prompted many people to seek testing, but none of them tested positive.

Quebec couple who came to Yukon 'misguided'

Hanley also spoke at Monday's news briefing about the Quebec couple that arrived in Old Crow, Yukon, a few days ago apparently seeking refuge from the pandemic.

The chief of the Vuntut Gwitchin First Nation in Old Crow said the couple "endangered" his community. They were escorted back to the airport two days later by RCMP, and put on a plane back to Whitehorse.

Hanley called the Quebec couple's misadventure "a very human story," and said they won't be prosecuted.

"These people, though misguided, did not contravene any order. They're now being given, or have been given, appropriate guidance so that they can better play their role in preventing COVID-19," Hanley said.

He wouldn't say where the couple is now, but said they're "safely in self-isolation."