The accident happened at Bangkok’s Soi On Nut 86.
Prawet police and rescuers rushed to the scene to find the motorcycle in a complete wreck, with the bodies of the man and the girl nearby.
The man, identified as Anupong Kaekmek, carried a gram of methamphetamine and a Smith & Wesson revolver in his bag, while the girl, identified as his “girlfriend”, had two cellphones and two packages of amphetamines on her body.
A garbage collector on the truck named Thanomchai Naksuk, 44, told police that Anupong sped past the red light before crashing at high speed into the rear of the truck.