On the afternoon of June 2, information from the Highway Traffic Control Patrol Team No. 3, Traffic Police Department (Ministry of Public Security) said that a passenger bus fire had just occurred on the Mai Son - National Highway 45 highway.

Accordingly, at around 11am the same day, a sleeper bus with license plate 37H-086.xx was traveling on the Mai Son - National Highway 45 expressway, in the direction of Thanh Hoa - Hanoi. When arriving at Ha Linh 2 bridge (Ha Linh town, Ha Trung district, Thanh Hoa province), a fierce fire broke out.

The fire did not cause any human casualties. However, the fire burned down the passenger bus.
Upon receiving information about the incident, the authorities were present at the scene to regulate and divert traffic. By 1:00 p.m. the same day, traffic on the route returned to normal.