
In the 27-second clip, which has been shared widely on social media, the policeman is seen beating the five teenagers, who were seated on the ground, in front of a mosque at a village in the district.
It is believed the incident occurred yesterday.
State deputy police chief Mazli Mazlan said a probe is on-going although no official report had been lodged.
“I was made to understand that the policeman had instructed the five, seen loitering in the area to leave and go home before continuing with his patrol.
“However, on returning to the same area later, the group was still there. Once again, the officer warned them to leave but this was met with laughter,” he said when contacted.
Mazli said the teenagers were allowed to return home thereafter.
“An internal investigation is at present going on,” he said.