Sydney has been ground to a halt as a blanket of thick fog causes significant disruptions to ferry services and motorways.
All ferries were cancelled temporarily and those attempting to travel via the water were being urged to find other options.
At 6am, Sydney ferries announced all services had been suspended.
“All Sydney ferry services are not running due to heavy fog,” Sydney Ferries posted on Twitter.
“Make alternative travel arrangements. Allow extra travel time and check information displays for service updates.
The services resumed just after 7.30am and stunning pictures show ferries travelling through the heavy fog.
With the fog not expected to completely lift until later on Wednesday morning, motorists have been advised to take extreme care on Sydney’s roads.
The weather bureau has warned of dangerous road conditions in all suburbs due to reduced visibility.
NSW duty meteorologist Helen Reid told NCA NewsWire the fog would not begin to lift until after 9am.
“We have seen widespread fog across the Sydney metropolitan region, not just western Sydney but also coastal areas,” she said.
“Traffic cameras are showing visibility has been reduced significantly.
“As of 8am, patches were reducing in their thickness in some areas and there was better visibility, but it will not be until after 9am until it lifts across most areas of Sydney because it will take a while for the winter sun to burn off the moisture in the air and allow it to re-evaporate back into the atmosphere.
“However, Sydney should see more of a sunny afternoon.”