Row of western Sydney shops gutted by fire

A row of shops in Sydney's west have been gutted by fire.

Up to 70 firefighters battled the blaze in Ware Street in Fairfield after the fire broke out just after 9.30pm on Tuesday, police said.

There were several explosions, believed to be sparked by aerosol cans, and at least six shops were damaged.

Surrounding businesses were closed on Wednesday as firecrews examined the scene. The cause of the fire is unknown.