An estimated 90,000 people have walked across the Sydney Harbour Bridge in rainy weather as part of a pro-Palestinian protest.
The bridge reopened at 5pm after being closed since to traffic since late morning.
NSW Police issued two geo-targeted alerts at around 3pm, ordering the march to turn around due to "public safety".
Thousands also marched in Melbourne and Adelaide to protest at the humanitarian crisis unfolding in Gaza.
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