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Premier Gladys Berejiklian has warned that if the number of new COVID-19 cases do not start dropping, NSW will have to introduce tighter lockdown measures.
NSW Chief Health Officer Kerry Chant said there are now 1219 cases in NSW, an increase of 190 new cases since the last update. Dr Chant said she expected numbers to increase as more people arrive back from overseas.
Ms Berejiklian said people should not panic because essential services like supermarkets would always remain open, but other shutdowns "could go further".
Pictures: Coronavirus (COVID-19) outbreak in Australia
She also said tougher border controls would be implemented to ensure no one disembarks any ships in NSW until stricter protocols are introduced.
It comes after the Ruby Princess debacle, which has seen an increasing number of coronavirus cases after almost 2700 passengers were allowed to disembark on March 19.
Ms Berejiklian said there are "potentially thousands of people" stranded on ships.
© AAP Image/Dean LewinsNSW Premier Gladys Berejiklian is seen delivering a health update on COVID-19 in Sydney, Wednesday, March 25, 2020. Australia will be placed into an even tighter lockdown from midnight on Wednesday night as governments desperately try to slow the spread of the coronavirus.
"I do not want a single person to come off a ship, and we have police at our ports this morning, until official protocols are signed," Ms Berejiklian said.
She said she wanted far tighter protocols that went "over and beyond" what currently exists.
She said state and federal governments had to be "in complete agreement" before anyone would be allowed to disembark.
"The position we land on we will mean that the state and federal authorities will be in complete lockstep," Ms Berejiklian said.
"We are going to take a very hardline approach in NSW ... but we need to really make sure there is no amount of daylight between where the states and federal authorise lie."