Elon Musk's jet causes a stir in Cleveland

• The jet was still in Cleveland as of early Tuesday afternoon, according to social media account ElonJet.

Yes, but: There is no proof Musk was on the jet or conducting business in Cleveland.

The intrigue: Still, some have zeroed in on Cleveland-Cliff's $7.3 billion offer to buy Pittsburgh-based rival U.S. Steel as a potential reason for Musk to visit.

• Not only is Tesla's upcoming Cybertruck made of steel, but Musk's company SpaceX is also designing a rocket made of the material.

Between the lines: Musk may also want to get his hands on U.S. Steel's "X" stock symbol for his social network formerly known as Twitter.

Reality check: None of this is confirmed. It's just as likely Musk's jet needed fuel and Cleveland was the nearest stop.