NSW man missing for four days

A NSW man has been reported missing after failing to turn up to work four days ago.

Gregory Rush, 42, lives and works in Sydney but stays with his mother at Wallsend in Newcastle on weekends.

He didn't turn up to work on Monday and his car, a white Ford with NSW registration plates UKR765, is yet to be located.

Police are appealing for information to help find Mr Rush, who is described as being 180cm tall, with a slim build, black curly hair, green eyes and tattoos of eagles on his upper back and upper right arm.