Elon Musk says he has visited the cave rescue site

Elon Musk says he has visited the flooded cave in northern Thailand where a youth soccer team became trapped and has left a mini-submarine there for future use, but it seems the rescue team may not be able to put it to use.

The tech entrepreneur tweeted Tuesday morning he’d “Just returned from Cave 3,” referring to the rescuers’ command center inside the sprawling cave. He posted photos of the cave interior and a video showing people working their way through chest-high water.

Musk has offered a “kid-sized” submarine, named Wild Boar after the kids’ soccer team, to help in the rescue operation. He posted videos of the sub being tested in a swimming pool in California with simulated narrow passages like the cave.

Later on Tuesday, however, BBC News quoted head of the rescue mission, Narongsak Osotthanakorn, as saying “the equipment they brought to help us is not practical with our mission.”

“Even though their equipment is technologically sophisticated, it doesn’t fit with our mission to go in the cave,” Osotthanakorn, who is the regional governor, said according to the BBC.