A small white mouse running around a Boeing 777 delayed a Vietnam Airlines flight to Tokyo for more than fours, newspapers reported on Monday.
A passenger saw the mouse on the aircraft, which had arrived in Hanoi from the central city of Danang at 10 pm on Saturday and was scheduled to continue to Japan.
"Technicians were sent to seek and kill the mouse on the Boeing and this task lasted for over four hours," according to one report in the online newspaper VietnamNet.
The report and others in state-run newspapers said the passengers went to a hotel and luggage was removed during the search for the mouse.
The rodent was found early on Sunday and the aircraft took off at 4 am.
Vietnam Airlines employees said they suspected that a passenger brought the mouse onto the plane and it escaped.