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PHILADELPHIA (CBS) — The Philadelphia Police Department is asking for the public’s help understanding a troubling video that’s been circulating online. It appears to show possible child abuse at a playground, but officials want to talk to the man and woman in it to be sure.

Disturbing cellphone video that shows a woman kicking and screaming at a young boy is now at the center of a Philadelphia Police Special Victims Unit investigation.

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“It could possibly be evidence of child abuse,” said Philadelphia Police Capt. Sekou Kinebrew.

Authorities believe the incident happened Tuesday at a playground at Frankford and Torresdale Avenues in Northeast Philadelphia.

“Hitting a child is ridiculous,” said Phil Jackson, who often visits the playground with his three daughters. “It was very hard to watch that because I can imagine my three kids. That wouldn’t go down with me.”

Now, investigators want your help identifying both the woman and a man seen in the video.

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“We don’t know what happened after the video. We don’t know what’s going on in the home,” said Kinebrew.

Philadelphia Police say it’s not clear whether everyone in the video is related. That’s why they would like to speak with these adults. If you recognize them, call the tip line at 215-686-TIPS. You can remain anonymous.