Lengthy delays for Sydney commuters

Traffic congestion is continuing in Sydney after a car hit a pole near an intersection in Sydney's inner west and a multi-vehicle crash on the M4 out west

Traffic congestion is continuing in Sydney after accidents in the inner west and on the M4 motorway. (AAP)

Sydney drivers have been warned of lengthy delays after a car hit a pole near an intersection in the inner-west and a multi-vehicle smash on the M4 motorway.

A 36-year-old male driver was treated by paramedics at the scene near Five Dock around 3am on Friday before being transported to RPA Hospital in a serious condition.

Lyons Road is closed in both directions between Sibbick street and Brent street due to a gas leak caused by the crash, police said.

Meanwhile the M4 motorway has re-opened at Greystanes after a serious three-vehicle accident.