Sydney fog is causing transport chaos this morning.
A thick fog has descended over Sydney this morning.
Motorists are urged to be cautious on the roads this morning as visibility is significantly reduced.
There are now flight delays up to 2 hours at Sydney airport as the fog impacts takeoffs and landings at Kingflrd Smith.
Images showed major Sydney roads, railways and bridges shrouded in thick fog.
Video: Flight delays at Sydney Airport
Ferries on Sydney harbour have slowed down and ships have been sounding fog horns all morning.
Chaos for flights this morning due to Sydney fog
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Sydney News Contributing Editor