N.V.T., 23, one of these cruiser bike riders, crashed into Major Vu Thanh Tung. As a result, the traffic police officer sustained minor injuries and had to be bandaged. A traffic police officer is seen sealing off one of the 30 cruiser bikes that illegally entered the Bac Giang-Lang Son Expressway in northern Vietnam. When they encountered traffic police being on duty on the route, some of the riders took flight toward Lang Son. As of 3:00 pm the same day, police had seized over 10 of the cruiser bikes and were hunting for the runaway riders.