A double-decker bus has extensive damage after a crash in Auckland's Mt Eden Rd.

A witness said the bus hit a power pole. Photos show the bus has a shattered windscreen.

A police spokesman said police and other emergency services were called to the crash at the intersection of Mt Eden Rd and Watling St about 11.50am.

No injuries have been reported.

A power pole has been badly damaged and concrete debris litters the footpath.

A section of both roads are closed as contractors deal with the lines down and diversions are in place.

Shops and cafes are without power, witnesses say.

A damaged power pole at the scene. Photos / Jared Percival