( CNN ) -- Authorities in Vietnam have arrested the former chief executive officer of Jetstar Pacific Airlines and are preventing two airline executives from leaving the country , Vietnamese and Australian officials said . The former chief executive , Luong Hoai Nam , faces prosecution for `` lack of responsibility causing serious consequences , '' said a spokeswoman for the Vietnamese Foreign Ministry , Nguyen Phuong Nga . Vietnamese authorities are investigating the airline 's chief operating officer , Daniela Marsilli , and its financial officer , Tristan Freeman , Jetstar Pacific said . They are not allowing Marsilli and Freeman to leave Vietnam , the airline said . Jetstar Pacific is partly owned by Qantas Airlines of Australia . The Australian Embassy in Hanoi is seeking details about why the employees are being prevented from leaving Vietnam , according to Australia 's Department of Foreign Affairs and Trade . The airline suffered heavy financial losses , the Vietnamese Foreign Ministry spokeswoman said , and investigators are trying to determine the responsibility of members of the airline 's executive board and managing board . Marsilli and Freeman are members of the airline 's managing board and must `` make themselves present in Vietnam to respond to the requests from Vietnam 's legal authorities in a timely manner , '' the Vietnamese Foreign Ministry spokeswoman said . -- CNN 's Pamela Boykoff , Eugina Huang and Eunice Yoon contributed to this report .
Jetstar Pacific is partly owned by Qantas Airlines of Australia . Airline : Vietnamese authorities not allowing airline 's CEO , financial officer to leave . Comment: