On August 2, Highway Traffic Control Patrol Team No. 5 of the Traffic Police Department, Ministry of Public Security informed that the unit is clarifying two cases of cars with blue license plates illegally overtaking on the Cam Lo - La Son highway.

At about 10:35 a.m. on August 1, from Km43 to Km43+500 on the Cam Lo - La Son highway, a car with official license plate 73A-005.49, Hyundai Santafe, traveling north-south, illegally overtook a series of other vehicles.

This section of road has a solid line, with a no-overtaking sign; at this time, other vehicles traveling in the same direction are following suit.

Also on the Cam Lo - La Son highway, at around 3:30 p.m. on August 1, at Km46 to Km46+600, a Toyota Fortuner with blue license plate 37A-006.50 traveling from south to north also encroached on the lane, overtaking other vehicles, on a section of road with a solid line.

The illegal overtaking behavior of the blue-plate vehicles was recorded by passersby on a camera and sent to the authorities. The clip also shows that while traveling on the Cam Lo - La Son highway, the two blue-plate cars did not have any priority lights or horns.