Crews battling fire at popular Sydney restaurant

A busy Sydney street has been evacuated after a fire broke out at a popular Sydney restaurant.

Fire and rescue crews have now extinguished the blaze on the roof of Argentinian barbecue restaurant Porteno in the inner-city suburb of Surry Hills.

More than 40 firefighters attended the scene at the Cleveland Street eatery.

No one was inside the building, Paramedics said.

Motorists have been advised to avoid the area.