AN internet famous inventor had multiple concerning social media posts before he suddenly stopped posting earlier this month, sparking missing persons rumors.

Julian Brown, whose amassed over 1.8 million followers for his engineering content, stopped posting on July 9, concerning followers for his well-being after making a post that said he was in danger.

“I’m certainly under attack. I can’t go into so much detail,”  he said in the video where he looked around worryingly.

In the days leading up to his posting hiatus, he wrote that he was building the most dangerous thing he’s ever done, and that he’s “Grateful” for his safety.

The X post has a video attached of his invention, which he claims can turn plastic into fuel.

Just two weeks ago, he posted to his YouTube channel that him and his family “are under attack right now from an extremely powerful force.

“I need your prayers and awareness.”

His mother Nia told the Daily Mail that she can confirm Julian is safe, but couldn’t provide more details.

“In the best interest of his security I’m not able to provide any more information,” she said.

Fans speculated the worst after his quietness on socials, but the Atlanta Police Department confirmed they were not looking for anyone under his name.

“I can confirm that the Atlanta Police Department is not currently investigating any missing persons by that name,” police told The U.S. Sun.

In June, Brown, 21, wrote that a helicopter was circling him, and asked followers to pray for him.

He also claimed that he knew he wasn’t “going to live long.”

Brown, the creator of Naturejab, said that he was “falsely accused” and reported to the Internal Revenue Service and Environmental Protection Agency, and that helicopters were following him around.

Many comments questioned where the “Plastoline” inventor was, with some floating around conspiracies as to where he might’ve gone.

“Where have you been,” commented one X user.

“We’re all worried.”

“The work you are doing is dangerous,” another posted.

“I hope you are doing well and are safe after the last few posts you made.”

In his last Instagram video, he claimed again that he is “under attack.”

The post has almost 380,000 thousand likes.

“I just want everybody to know to have their eyes open,” Brown said.

“I’m just telling you guys right now: be on the lookout.”