A Southwest Airlines flight plunged mid-air on Friday to avoid colliding with another aircraft while en route to Las Vegas, injuring two flight attendants, as passengers described flying out of their seats.

Southwest Airlines said in a statement that two flight attendants are being treated for injuries after the incident.

Two Southwest Airlines flight attendants were hurt after pilots were alerted to another aircraft in the area when ascending from Burbank Airport.

Passengers aboard a Southwest Airlines jet from Burbank to Las Vegas said their pilot had to “aggressively” dive to avoid a midair collision with another plane shortly after takeoff on Friday afternoon.

A Southwest flight out of Burbank rapidly descended 475 feet to avoid another plane on Friday, according to flight tracking data and passengers on the plane.

A person on the flight said it “dove aggressively” and that people flew out of their seats. The flight landed safely at its destination, Las Vegas.

One person on the flight said on social media that some passengers “flew out of their seats and bumped heads on the ceiling.”