The Air Force has acknowledged a video showing SpaceX CEO Elon Musk apparently smoking marijuana, but has said there is no current investigation into the incident.

The military branch pushed back on reports from CNBC and others on Friday that said the Air Force was investigating Musk's pot use after the CEO shared video of himself smoking on a podcast.

SpaceX has multiple contracts with the Air Force and serves as a launch provider for the U.S. government, which prohibits marijuana use for those with a government security clearance.

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“It’s inaccurate that there is an investigation. We’ll need time to determine the facts and the appropriate process to handle the situation,” an Air Force spokesperson told The Verge.

Musk, who is also the CEO of electric car company Tesla, took a puff from a joint during an interview with comedian Joe Rogan late Thursday in California. Rogan said that the joint contained marijuana and tobacco.

The Tesla founder has been under scrutiny from the Securities and Exchange Commission after tweeting in early August that he was thinking about taking the company private, saying he had "funding secured" to go private at $420 a share. He later announced that the company would remain public.

Shares of the company fell more than 6 percent on Friday following news of the smoking video and the departure of two Tesla executives.