Company spokeswoman Gina Antonini declined to comment on the email.
The employee is said to have been upset over a promotion that he didn't receive, Musk added.
"The full extent of his actions are not yet clear, but what he has admitted to so far is pretty bad", Musk wrote.
Rapper XXXTentacion appeared ‘lifeless’ after gunfire strikes vehicle
Despite his legal troubles, XXX has found success in the entertainment industry with his last album debuting at #1. Just minutes before the shooting, the rapper stated via Instagram that he was planning a charity event in Florida.
From the unconfirmed email obtained by CNBC, it seems that the saboteur is already in custody and has owned up to his (yes, male) crimes.
At least, that's what he told Tesla employees in an email sent Sunday night, according to CNBC.
The organizations that Musk believes could be responsible include the petrochemical industry, the traditional automotive manufacturers and Wall Street short-sellers, but given the relatively huge number of people that the company is laying off as part of its path to profitability, that seems to be a more likely culprit.
Earlier on Monday, Musk sent a separate email to employees informing them of a "small fire" on Sunday at a company facility. The smoldering was extinguished in a matter of seconds.
Mexico fans cause quake as they celebrated shock win over Germany
In Brazil, Low had options in midfield, including Lahm, who had been converted into a central midfielder by Pep at Bayern. If anything, the scoreline might have flattered Germany as Mexico wasted a number of fine chances on the counter.
Short-sellers have been betting against the electric vehicle manufacturer for months, and many saw the company's recent announcement that it plans to lay off 9 percent its 46,000-person workforce as a sign that Tesla needed cash.
"Could just be a random event, but as Andy Grove said, 'Only the paranoid survive, '" Musk wrote, quoting the former CEO of Intel.
Tesla has faced plenty of criticism about its ongoing troubles in ramping up Model 3 production. "There were no injuries or significant equipment damage, and production is back online".
Musk said the reorganization did not affect hourly assembly-line employees and was not expected to delay manufacturing targets.
IOS 12 will share your location with 911 emergency responders
RapidSOS's system will increase the precision considerably, the companies said. The company wants first responders to get to emergencies more quickly.
Tesla's stock price slipped 53 cents to US$370.30 in after-hours trading.