A three-year-old child was indiscriminately assaulted for running through the bus.

Busan Busanjin Police Station is investigating Mr. A in his 20s for beating a toddler and his guardian grandmother.

Mr. A is accused of hitting a 3-year-old child in the face several times and biting the arm of a 60-year-old woman who was restraining him on a city bus running near an urban railway station in Gaya-dong, Busan at around 8:20 a.m. yesterday.

In a police investigation, A stated that he hit a child's arm next to him for touching his knee.

The mother of the victim posted a message on the portal bulletin board that a bigger accident would have occurred if the passengers around her had not stopped her, and the perpetrator insisted on anger control disorder and did not apologize.