This is the shocking moment a heartless motorcyclist rides away after knocking over a schoolgirl. Sirintorn Charoenrum, 10, was crossing the road to reach classes when she was hit by a rider - travelling the wrong way down a one-way street - in Samut Prakan, Thailand. CCTV footage from a nearby grocery shop captured the moment the little girl was hit on Tuesday (24/09) morning. Sirintorn was flung into the air and landed several metres away. Instead of stopping to help her, the rider fled. Onlookers rushed to help the girl whose mother, Uthaiwan , 31, arrived on the scene and collected her daughter.