Six flight attendants in Australia have been rushed to hospital after strange fumes leaked onto a plane.

Crew members of Jetstar, a budget airline owned by national carrier Qantas, were on board a plane at Gold Coast Airport when the fumes began seeping in. They were taken to Tweed Heads Hospital at around 1.40pm on 20 December.

The staff members who inhaled the fumes were all hit with similar symptoms, including nausea, light-headedness and dizziness, according to the Gold Coast Bulletin.

"They are all in a stable condition but the fume was unknown," a Queensland Ambulance Service spokeswoman said.

Earlier in December, a women in the United States was caught smoking on a Southwest Airlines plane and threatened to "f*****g kill everyone". Valerie Curbelo, 24, was arrested at Sacramento Airport on Saturday (9 November) and charged with three counts of threats to commit crime resulting in death or grievous bodily harm.

In a statement, Southwest Airlines said that the incident occurred during a flight from Portland to Sacramento. "Our reports from flight attendants indicate a customer violated federal laws by both smoking on board an aircraft and by tampering with a smoke detector in an aircraft restroom."

Another passenger managed to record the incident.