RCMP in Prince Rupert, B.C., have launched an internal investigation after cellphone video surfaced online apparently revealing a confrontation between officers and two teenagers.

Police in the north coast city confirm in a news release that they responded to reports of a fight in progress shortly before 1 a.m. on Nov. 12.

An ambulance was called when officers found an injured 16-year-old boy but they also say the teen became combative and tried to fight the attendants and police.

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According to police, an 18-year-old female bystander joined the fight and was taken into custody.

Sgt. Jagdev Uppal says video of the incident has been distributed on social media and investigators are now trying to locate the person with the video and also want to speak with any other witnesses.

A public complaint about the police response was filed on Nov. 14 and the RCMP release says an internal probe has begun.