A nine-car nose-to-tail crash in North Shore has caused traffic problems, but resulted in no injuries, police say.
The cars were blocking the North-bound fast lane on Greenhithe Bridge on the Upper Harbour Highway.
Police said there were no injuries but traffic backlogged west of Squadron Drive.
Another two-car collision further up the road also affected traffic.
Police said there was still fog in the area and warned drivers to take care.