An skilled triathlete who took half in an Ironman occasion the place two folks died says "swimmers were being knocked around like skittles" in unhealthy climate situations.

Alan Walsh advised Sky News there are severe questions on security to be requested - and the swim in Co Cork on Sunday ought to have been cancelled within the wake of Storm Betty.

Two males, of their 40s and 60s, got into difficulty in Youghal Bay - with Triathlon Ireland saying its officers did not sanction the swimming race.

Mr Walsh stated he witnessed "an awful lot of people getting into difficulty", and it was laborious for opponents to see security boats due to the swell.

During the swim, one man began calling for assist and went underwater.

"He was obviously drowning," Mr Walsh stated. "It felt like forever and it was only a second or two, but I went over to him and picked him up over my shoulder.

"I'm simply struggling to maintain us up and I'm roaring at him to chill out and lie again after which a canoeist sees us."

Mr Walsh said he managed to get the swimmer onto a canoe - and carried on with the race after making sure he was okay.

Once he was out of the water, he noticed stewards resuscitating somebody on the pier.

"I would say it was 100% the worst conditions I've seen a triathlon swim go ahead in," Mr Walsh advised Sky's Lisa McNally.

The triathlete warned there's a "huge amount of risk" in these races and something can occur - however on the very least, the swim course ought to have been altered sooner.

"They changed the route of the swim mid-race - someone was announcing it on loudspeaker," Mr Walsh stated. "How the hell are you meant to hear that if you're in the water?

"We put on earplugs and I solely discovered as a result of somebody tapped me and advised me as I used to be getting within the water. I'd anticipate these errors from somebody organising their first triathlon, however not Ironman."

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The two males who died have been named as Ivan Chittenden and Brendan Wall.

"My heart goes out to their families and I am gutted for them," Mr Walsh added. "It's horrific first and foremost - that's where my mind is, not on any race."

Mr Chittenden and Mr Wall have been pronounced lifeless on the scene after being faraway from the water by emergency companies.

Irish police are investigating, and the coroner has been notified.

Sky News has approached Triathlon Ireland and Ironman for a response.