The Federal Aviation Administration said Tuesday it is investigating reports from airline pilots that someone was flying in a jetpack as they approached Los Angeles International Airport to land last weekend.

“Two airline flight crews reported seeing what appeared to be someone in a jetpack as they were on their final approaches to LAX around 6:35 p.m. PDT Sunday,” the FAA said.

The statement did not elaborate.

Fox 11 Los Angeles obtained recordings of communications between the aircraft and the tower.

“Tower, American 1997, we just passed a guy in a jetpack,” a pilot said.

“American 1997, OK, thank you, were they off to your left side or your right side?” the controller asked.

“Off the left side at maybe 300 yards or so at our altitude,” the pilot said.

A second pilot also reported seeing the high flyer.

The controller then advised another aircraft flight crew to use caution.

“Person in a jetpack reported 300 yards south of the LA final at about 3,000 feet (914 metres), 10-mile (16-kilometre) final,” the controller said.

Jetpacks are not that uncommon but usually fly just a few hundred feet from the ground.

Ross Aimer, former pilot and CEO of Aero Consulting Experts, told FOX 11 Los Angeles: “Whoever was operating—if it is a jetpack—this was a crazy place to be. The danger is that, God forbid, if they would have hit this object, whatever it was, it could get sucked into the engine.”

Earlier this year a man reached more than 5,000 feet earlier in a jetpack demonstration flight above Dubai, that is considered a record altitude for jetpacks.