Hamilton police said they were investigating a video posted on a social media site showing two teenage girls fighting in a park and a group of adults encouraging them.The home video showing the two girls' fight was posted on Facebook.Watch video of the fightSeveral adults can be heard in the background encouraging the girls to hit each other.At one point in the video, one girl is on top of the other, hitting her with both hands. No one steps in to stop the fight.Detectives said they have identified the girls in the video as a 13-year-old and a 15-year-old.Officers said they spoke with both girls and their parents and neither was willing to file a police report or assist in the investigation.Detectives said the investigation into the fight was closed but charges could be filed against the adults in the video.They were still trying to determine the identities of the adults who did not step in to prevent or end the fight.If the adults are identified, officers said they would turn the case over to a prosecutor to determine charges.

Hamilton police said they were investigating a video posted on a social media site showing two teenage girls fighting in a park and a group of adults encouraging them.

The home video showing the two girls' fight was posted on Facebook.

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Watch video of the fight

Several adults can be heard in the background encouraging the girls to hit each other.

At one point in the video, one girl is on top of the other, hitting her with both hands. No one steps in to stop the fight.

Detectives said they have identified the girls in the video as a 13-year-old and a 15-year-old.

Officers said they spoke with both girls and their parents and neither was willing to file a police report or assist in the investigation.

Detectives said the investigation into the fight was closed but charges could be filed against the adults in the video.

They were still trying to determine the identities of the adults who did not step in to prevent or end the fight.

If the adults are identified, officers said they would turn the case over to a prosecutor to determine charges.