Three cases of COVID-19 have been confirmed in Guam.

Governor Lou Leon Guerrero has declared a state of public health emergency in the US territory, which is also a hub for travel in the North Pacific.

In a statement Guerrero stated that all three confirmed cases are currently in isolation.

She says preliminary investigation has indicated that all three had travel connections - two recently travelled to the Philippines and the third had a family member who recently returned from Japan.

At a later news conference, Guerrero urged anyone who was on that flight to self-isolate, along with anyone who had flu-like symptoms.

Guam is the second territory in the Pacific to confirm cases of COVID-19, after French Polynesia declared three cases last week.

The total of cases in the Pacific are now at 6.

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