SYDNEY (BLOOMBERG) - Australia's Parliament House will be closed to the public for the foreseeable future after a political staffer for Greens leader Adam Bandt tested positive for the coronavirus.

The staffer is fully vaccinated and tested positive upon return to Melbourne after attending Parliament last week, a spokesman for Mr Bandt said in a statement.

Mr Bandt, who is vaccinated, and other employees who were in Canberra last week tested negative for the virus, according to the statement.

Given the positive result, officials "have decided that Parliament House should close to the public until further notice", the Department of Parliamentary Services said in a separate statement.

The authorities said they are investigating possible close contacts and exposure locations in Parliament, as well as in the broader community.

The Australian Capital Territory, home to capital Canberra, reported six cases on Sunday (Dec 5), a Health Department spokesman said by phone.

Neighbouring New South Wales state found 286 new virus infections, while Victoria state recorded 980, according to separate statements on Twitter.