WA underground mine workers flee fire

Workers at an underground mine in Western Australia fled to the safety of a refuge chamber after a fire broke out.

A fire at an underground mine in Western Australia has forced 11 workers to flee to an emergency refuge chamber.

The blaze broke out at Doray Minerals' Deflector gold and copper mine, about 50km south of Yalgoo in the state's Murchison region, just after midnight on Wednesday.

The company said the workers were later escorted out of the mine by an emergency response team and returned to the above-ground site office.

None have been injured.

Doray said the extent of the fire, which involved an underground loader, was still being investigated.

Underground operations have been halted.