A medical ethics group is demanding that the United States Securities and Exchange Commission investigate Neuralink founder Elon Musk after new details emerged about the grisly deaths of monkeys involved in testing.

Neuralink is trying to create a chip that can be inserted into a human brain, allowing users to interact with computers. The implants were first tested on monkeys to ensure their safety before the first human trial, which was approved this week. Musk had assured the public that the testing on monkeys had been extremely careful, and none had died as a result of the implants. A recent Wired investigation suggests the contrary, however.

WHO IS LACHLAN MURDOCH? THE NEW HEAD OF FOX NEWS AND SON OF RUPERT MURDOCH

"No monkey has died as a result of a Neuralink implant," Musk posted on X, the social media platform formerly known as Twitter, on Sept. 10. "First our early implants, to minimize risk to healthy monkeys, we chose terminal monkeys (close to death already)."

The Physicians Committee for Responsible Medicine said that the statement was false and meant to mislead investors so as not to lose investment.

"Musk knows that to be false. Public records obtained by the Physicians Committee reveal that at least 12 young, previously healthy monkeys were euthanized by Neuralink as a direct result of problems with the company’s implant," the letter read.

"The animals’ deaths and the reasons for their deaths relate directly to the safety and marketability of the brain-computer interface Neuralink is developing, and thus it is critical that the company provide investors with factually accurate information."

“They are claiming they are going to put a safe device on the market, and that’s why you should invest,” Ryan Merkley, head of the Physicians Committee for a Responsible Medicine’s research into animal-testing alternatives, told Wired. “And we see his lie as a way to whitewash what happened in these exploratory studies.”

The group was able to obtain veterinary records from the experiments that appeared to show that Musk's statement was untrue — several deaths were the direct result of the implants.

CLICK HERE TO READ MORE FROM THE WASHINGTON EXAMINER

The letter presents several examples of monkeys who suffered extensively as a result of the "experimental" surgery. The surgeries largely saw "Neuralink employees drilled two dime-sized holes in the animals’ heads, implanted electrodes in their brains, and attached titanium plates to their skulls using bone screws."

In several cases, the implant became infected, leading to complications that resulted in the euthanization of the animal. Some of the symptoms during the trials included chronic infections, swelling in the brain, “remnant electrode threads” from the device found in the brain, “tattered” cerebral cortex, paralysis, seizures, loss of coordination and balance, and depression. Several of the monkeys were seen pulling at the implant and expressing signs that it was causing them pain and discomfort.