The 67-year-old man from Sussex had been wreck diving with a group from the charter-boat Raider V from Lowestoft in what were described as perfect diving conditions.
His DSMB was reported to have been deployed at around 5pm, with the Coastguard alerted some 50 minutes later after he had failed to resurface.
Three lifeboats from Gorleston, Lowestoft and Caister and two Coastguard helicopters from Hull and Lydd were involved in the search along with local boats.
The Coastguard stated that the official search would resume only on receipt of any new information, although divers associated with Raider V are reported to be continuing with underwater searches. The man’s family have been informed by police.
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