A violent attack on a teenage girl that was caught on video by multiple people in Kelowna, B.C., has prompted her father to come forward, demanding answers and justice.

Kelowna RCMP say the attack happened on Friday evening, and that the video has been circulating "widely" online in the southern Interior community, around 270 kilometres east of Vancouver in B.C.'s Okanagan.

RCMP say the attack happened in the area of Boyce-Gyro Beach Park and was one of several incidents of youth committing criminal offences, including assault and mischief, in the area.