On July 2, Vietnam Airports Corporation (ACV) said that Tho Xuan Airport has just added signs, painted lines and installed barriers in dangerous areas to warn and prevent illegal access to the airport area.

The inspection of the airport area at the port is being strengthened to control foreign objects and promptly detect threats to flight operations.
Previously, as reported by Lao Dong Newspaper, due to the continuous appearance of strange objects near the airport area, the Civil Aviation Authority of Vietnam decided to temporarily suspend the operation of Tho Xuan airport from 6:00 p.m. on June 16 to 6:00 a.m. on June 17, then continue to temporarily suspend the operation at the same time until the end of July 1, to ensure absolute safety for flight operations.
According to the report of the Northern Airports Authority, these unidentified flying devices have seriously affected civil aviation operations and pose a potential threat to the airport airspace.
In response to the above situation, the Civil Aviation Authority of Vietnam has issued an urgent document, requesting Tho Xuan Airport and the Air Traffic Safety - Landing Team to urgently tighten coordination between the Air Traffic Control Station, the aviation security force, the military and related units to be ready to handle when detecting a foreign object entering.
The Department also directed to increase propaganda on aviation safety laws in neighboring localities, and at the same time requested the development of a response plan to situations threatening flight safety during take-off and landing activities.
The Northern Airports Authority was assigned to preside over the investigation and verification of the incursions on June 13 and 14.6; coordinate inter-sectoral patrols in residential areas bordering airports; strictly handle acts of threatening the airspace according to the law.
The Civil Aviation Authority of Vietnam has also recommended that the People's Committee of Thanh Hoa province direct the authorities to urgently search for subjects using drones to illegally invade, strictly handle and increase propaganda among the people about regulations to ensure aviation safety.