Daniel Andrews to reveal length of extended lockdown as ‘fleeting’ contact causes new Covid cases

Premier says state has not yet outrun fast-moving Delta variant and flags tighter border restrictions once lockdown does end

• Doctors say tougher lockdown in Sydney very unlikely' to get outbreak under control by August
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The Victorian premier, Daniel Andrews, will announce on Tuesday how much longer the state's fifth lockdown is expected to last, as health authorities scramble to control an outbreak of the Delta variant.

The state announced 13 new Covid-19 cases on Monday, with more than 15,800 close contacts and 250 exposure sites. Four other cases were flagged that will be included in Tuesday's figures.