Two citizens of Estonia were given a penalty for smoking on a Finnair flight to Bangkok.
Meanwhile, Thai authorities are attempting to find a woman who was recorded vaping during a flight from Mae Fah Luang airport.
Once the aircraft arrived in Bangkok, the Finnair staff informed Suvarnabhumi Airport officials that the two siblings had smoked in the airplane's restroom during the trip to Bangkok.
Despite being told by the cabin crew to stop, they smoked on five separate occasions, resulting in each of them being fined 20,000 Baht.
A different incident involves a widely-circulated video showing a woman using e-cigarettes during the flight, although the woman's nationality is not yet known.
Somchanok Tiamtiabrat, director of Mae Fah Luang International Airport, mentioned that the process of screening passengers and luggage usually detects dangerous items in airports. However, she added that some e-cigarettes are made of plastic, which could be overlooked.
Under the Tobacco Product Control Act 2017, smoking on airplanes is not allowed, and those who violate this rule may face up to one year in prison and/or a fine not exceeding 40,000 baht upon conviction.
Following the video's widespread circulation, internet users questioned how the airport authorities had allowed these e-cigarettes to pass through to the airplane.