The incident poses serious threat in terms of aviation safety, said an urgent document issued by the ministry signed by Deputy Minister Le Dinh Tho.
The document asked the Civil Aviation Authority of Vienam (CAAV) to set up an investigation team to clarify the cause of the incident.
The CAAV has suspended the flight crew pending investigation.
The authority has also decided not to allow Vietjet to increase the number of flights. At the same time, it imposes special supervision of the budget carrier at four international airports of Noi Bai (in Hanoi), Tan Son Nhat (in Ho Chi Minh City), Cam Ranh, and Da Nang (the central city of Da Nang).