Two fishermen have been found dead in waters just north of South Australia’s Kangaroo Island after their boat capsized.

SA Police said they were alerted to the overturned vessel off the coast of Cassini at 4:15pm on Wednesday.

Emergency services found the overturned vessel and located the bodies in water nearby, police said.

Safework SA has been notified of the deaths.

Kangaroo Island Mayor Michael Pengilly told ABC Radio Adelaide that it was a “very dark day” for the families and island.

“It’s just a terribly, terribly sad occasion and my heart goes out to the families,” Mr Pengilly said. 

Michael Pengilly says it’s a dark day for the island.(ABC South East SA: Caroline Horn)

He said the men were from Kangaroo Island and knew the waters well. 

However, he said they were sailing through thick fog when the boat capsized. 

“Something has gone tragically wrong and as you know the sea doesn’t take any prisoners and unfortunately we’ve lost two of our very good people.”

“I know someone the other day that went fishing out of Penneshaw on a sea fog and thought they were going back to Penneshaw and ended up at Island Beach. So the fog is very deceptive.”

Meanwhile, police have found a man in his 70s who went missing while kayaking along the Coorong, south-east of Adelaide. 

The kayaker set off on a trip on Monday and had stopped making regular contact.(Supplied: SA Police)

The kayaker set off on a trip on Monday and the alarm was raised after he stopped making regular contact.

Police said they were able to make contact with the man just after 11pm on Wednesday and confirmed he was safe.

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