Boys rescued from Thailand cave steadily recovering at hospital, officials say Musk had offered a mini-sub to help with the rescue.
British diver Vern Unsworth, 63, a key member of the rescue team, shot down Musk's idea in an interview about the ordeal with CNN.
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In the interview, Trump was especially critical of May's handing of the UK's upcoming exit from the European Union. Speaking about the prime minister's strategy, President Trump said , "I would have done it much differently".
After Zeynep Tufecki, a professor who writes about the social impact of technology, penned a mostly critical New York Times opinion piece about what Musk could learn from the experience, the billionaire continued to fire back. Highlighting the dangers, a former Thai navy SEAL volunteering to work on the rescue effort died Friday while replenishing oxygen canisters that were placed along the escape route.
"The submarine, I believe, was about 5' 6" long, rigid, so it wouldn't have gone round the corners or round any obstacles.
Before the rescue mission began, Musk tweeted that he had designed an "escape pod" built from "the liquid oxygen transfer tube" of a SpaceX Falcon rocket that could be used as a submarine to extract the children.
"It wouldn't have made the first 50 metres into the cave from the dive start point".
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The Syrian Arab News Agency ( SANA ), for its part, reported that the attacking warplanes belonged to a USA -led global coalition. The Observatory said the attack had targeted an ice factory east of Soussa a few kilometers from the border with Iraq.
When a Twitter user called Musk out for labeling a rescue diver a "pedo", the entrepreneur doubled down on his claim, saying, "Bet ya signed dollar it's true".
But now Mr Musk has taken to Twitter in a rant against the experienced diver, adding he "never saw him in the cave". Both tweets have since been deleted. He also said that Musk was asked to leave the cave, saying that he shouldn't have been there.
Mr Unsworth said he had not reviewed the tweets in full and had only heard about them.
"He was one of the driving forces in getting everything done and clarifying for us divers what was going on".
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Of the summit as a whole, he said: "I'm not going with high expectations" but insisted: "I think it's a good thing to meet". Mr Trump said he respects Europe's leaders but says they have taken advantage of the USA on trade and defence spending.