The Twitter and Tesla CEO wrote that the stalker targeted a vehicle containing his son X Æ A-Xii “thinking it was me,” with an 11-second video clip of a masked man, asking “anyone recognize this person?”

It followed the banning of the @ElonJet Twitter account, which tracked the business tycoon’s private flights using publicly available information, as well as a number of other accounts run by 20-year-old University of Central Florida sophomore John Sweeney.

On Wednesday, Musk tweeted: “Last night, car carrying lil X in LA was followed by crazy stalker (thinking it was me), who later blocked car from moving & climbed onto hood.

“Legal action is being taken against Sweeney & organizations who supported harm to my family.”

Musk then posted the 11-second clip of a man, masked and dressed all in black, in the driving seat of a white Hyundai.

He added: “Anyone recognize this person or car?”

Earlier, as part of the same Twitter thread, Musk, 51, tweeted: “Any account doxxing real-time location info of anyone will be suspended, as it is a physical safety violation. This includes posting links to sites with real-time location info.

“Posting locations someone traveled to on a slightly delayed basis isn’t a safety problem, so is ok.”

Doxxing is a term for disclosing someone’s private information online.

X Æ A-Xii, who was born in May 2020, is the 2-year-old son of Musk and the singer Grimes, 34, his former partner.

The @ElonJet Twitter account, which had more than 530,000 followers, and dozens of similar accounts tracking other public figures using data from the aerospace-monitoring ADS-B website, were deleted by Twitter on Wednesday. Sweeney, who created many of the bot-run accounts, also had his private account terminated.

Speaking to Newsweek shortly after the ban, Sweeney noted Musk had promised not to delete the @ElonJet account.

He said: “He said he wouldn’t ban it. And he put out that tweet where he [spoke about] his commitment to free speech. But that’s not true. That’s just not true anymore.”

Asked whether he believes Musk was personally responsible for his accounts being deleted, Sweeney added: “We’re still in the early hours, but I mean, what else? What else could be going on?

“You know, it’s pretty obvious. But I’d like to hear his word, hear exactly what he thinks and how he’s going to play this, because it’s completely the opposite to what he said.”

Writing for Newsweek in November, Sweeney said Musk had offered him $5,000 for the account, which he had turned down.

Musk took control of Twitter at the end of October, following a $44 billion deal to buy the social-media giant, claiming he would make it a haven for “free speech.”

On November 7, Musk implied the @ElonJet account would be allowed to continue, tweeting: “My commitment to free speech extends even to not banning the account following my plane, even though that is a direct personal safety risk.”

Newsweek has contacted Twitter for comment.

Correction 12/21/22, 1:26 p.m. ET: The name of the manufacturer of the car described was amended.