An otter and rat that were smuggled in a passenger's hand luggage sparked chaos when they escaped mid-air and bit an air hostess's hand.

Shocked passengers noticed the giant albino rodent with glistening red eyes when they walked to the bathroom on the Airbus A320 flying from Bangkok to Taiwan on Wednesday afternoon.

Flustered air hostesses searched the plane and noticed a second wild creature - a 30cm long otter under a seat. Footage shows the chaos onboard flight VZ564 operated by Vietnamese carrier Viet Jet as the crew battled to catch the animals.

Shockingly, a box of 28 live turtles was also found when police searched the plane upon landing in Taipei following the three-hour and 45-minute low-cost flight.

Officials have now launched an investigation into how a Chinese-speaking female passenger allegedly smuggled the creatures through the security checks at the notoriously corrupt Suvarnabhumi International Airport in Thailand.

A shocked passenger who recorded the scene said: 'The flight took off as scheduled and the pilot ordered the seatbelts could be released. I walked back from the toilet and my friend whispered softly to me 'there's a rat on the plane'.

'I was confused so he said again 'pet rat, pet rat, it has a white body and it's not small'.

'I told the cabin crew and they checked the plane. That's when they found the big otter under one of the seats. They kept looking for the white rat and an employee caught the rat. It bit them on the hand while they carried it back to the kitchen at the back of the plane.'

The cabin crew reportedly made an announcement ordering anyone who had brought animals on the plane to make themselves known. The filmer said that after several seats were searched before a Chinese passenger 'asked for a refund' and allegedly admitted they were her animals.

Staff then appealed for a passenger who could 'speak Chinese fluently' to help them discuss the situation with the woman, who is believed to have bought the creatures from a market in the Thai capital.

The filmer, who did not want to be named, said that 'every bag' was searched when the aircraft landed at the Taiwan Taoyuan International Airport.

Police found a bag that allegedly contained 28 start turtles, a snake, one marmot, two otters and two other unknown rodents. The creatures were seen being removed from the aircraft.

The Taoyuan Branch of the Defense Inspection Department said today that the star turtles will be kept in quarantine and the rest will be sent to Pingtung University of Science and Technology for confirmation before disposal.

Police said the suspect was being questioned and could be fined up to NT$1 million (31,000 USD) in accordance with the provisions of the Prevention and Control of Animal Infectious Diseases.

Officers said they did not know how the animals were taken on the plane. The passenger who is believed to have smuggled them on the aircraft 'has not been co-operative'.

VietJet Air is a Vietnamese low-cost airline based in Hanoi. It was the first privately-owned airline to be established in Vietnam, and is currently the largest private airline in the country. Their subsidiary Thai Viet Jet flies out of Bangkok.

However, in 2014, the airline was slammed for hiring bikini models to pose as cabin crew for a calendar. The campaign was accused of being sexist and demeaning to women.

In 2018, VietJet Air was fined by the Vietnamese aviation authority for hosting a bikini-clad fashion show on a flight carrying home the country's under-23 football team from a competition in China. The show was criticised for being inappropriate and disrespectful to the players.

VietJet Air has defended its use of bikinis, arguing that it is a way to promote the airline's youthful and carefree image.