Search on for missing diver off Mackay A MAJOR air and sea search is underway off the central Queensland coast for a diver who has been missing since late Saturday. The 35-year-old man was last seen about 5pm (AEST) about 100 nautical miles off the coast of Mackay. Six fixed wing aircraft and two helicopters, as well as the vessel he was on, have been searching for the man without success. An RACQ CQ Rescue helicopter involved in the search deployed two beacons to track water currents in the hope it might give a better indication of the diver's location. The man was wearing a wet suit when he disappeared. An operations centre will be set up on Sunday to help with the search.