Police search for WA man who vanished on motorbike

Police are searching for a man who disappeared while riding his motorbike with friends in Esperance, Western Australia yesterday.

Sidney James Whiley, 39, vanished while riding on bush tracks off Downes Street in the early hours of Sunday morning and has not been seen since.

He is described as being 179cm tall of medium build with brown hair, green eyes and fair skin.

Police are set to launch an air search this morning for Mr Whiley.

Anyone with information on his whereabouts are urged to contact police on 131 444.