On Thursday, New Zealand Cricket (NZC) said that six Pakistan cricket squad members tested positive for the Covid-19 while in managed quarantine in Christchurch.
NZA added that all six members were moved into quarantine and the team's exemption from training while in isolation was temporarily cancelled.
3 Twenty20 internationals and 2 Tests are set to be played by Pakistan from 18th Dec, while a Pakistan 'A' tour will also be conducted concurrently.
The Ministry of Health said all 53 travelling party members, comprising players and staff, were tested on arrival on 24th Nov and the positive test results are from those tests.
All the players in the squad had tested negative 4 times before leaving Lahore, NZC said in a statement. 2 of the 6 results were 'historical' infections while 4 were new.
NZC pointed out that it was made aware that Pakistan squad members may have violated strict biosecurity protocols on the 1st day of their 14 days compulsory isolation.
The team was not permitted to socialise, eat or train together outside of its small bubbles' while in quarantine as part of measures to prevent COVID-19 from being brought into the country.
Earlier this month, the touring West Indies team also fell foul of the regulations and had its training exemption cancelled.