Whitney Houston loses cool on flight

Whitney Houston was reportedly involved in an incident aboard an Atlanta-to-Detroit Delta flight Wednesday.

Story highlights

  • Houston, 48, reportedly refused to fasten her seatbelt
  • She eventually was buckled up by a flight attendant before takeoff
  • "She wasn't drunk, drinking or on drugs," a source said

It's been said before, and it's happened again: Houston, we have a problem.

Whitney Houston, that is, who was involved in an incident aboard an Atlanta-to-Detroit Delta flight Wednesday, a source close to the singer confirms to PEOPLE.

Houston, 48, refused to fasten her seatbelt and had words with a crewmember before she eventually was buckled up by a flight attendant before takeoff.

"She wasn't drunk, drinking or on drugs; she was just exhausted," the source tells PEOPLE.

See the full article at PEOPLE.com.