The bomb squad cleared a memorial to the Bourke Street Rampage in Melbourne, with several streets blocked off about 1.30pm today.
It was deemed safe a short time later.
A police statement around 1pm confirmed safety checks were being conducted at the makeshift memorial.
"We can confirm that Elizabeth between Little Bourke Street and Little Collins Street is closed to all traffic and pedestrian flow whilst this takes place," the statement said.
"The Bomb Response Unit is now at the scene."
By 1.30pm police said the area was "deemed safe".
Flowers have been laid at the inner-city location as Australians came to terms with the senseless acts of violence on January 20, injuring more than 20 and killing six.
Police last night confirmed the sixth person to die as a result of the rampage was a 33-year-old Blackburn South woman.
Also confirmed dead is Matthew Si, 33, Jess Mudie 22, Thalia Hakin 10, Zachary Bryant three months and an unnamed Japanese man believed to be 25.
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