Brooklyn Borough President Eric Adams called for action Friday after a mob of teenagers unleashed an “outrageous” beatdown on a girl and stole her Air Jordans on a Crown Heights sidewalk.

“This person on the ground is a 15-year-old girl. Someone’s daughter. Someone’s sister. Someone’s niece,” Adams said on Facebook Live while pointing to a TV screen displaying footage of the attack. “This is outrageous.”

“These are young men that are doing this to this young girl. This is unacceptable,” he proclaimed. “It’s not something we can ignore.”

The girl was rushed to NYC Health & Hospitals in Brooklyn Thursday with head trauma after more than a dozen teens — most of whom were guys — pounced on her on Utica Avenue near Sterling Place, according to police.

The ruffians were caught in surveillance camera footage jumping and stomping on the girl’s chest and face as she lay helplessly on the sidewalk. Others mercilessly punched and kicked her over and over, the footage shows.

On Friday, Adams said he plans to bring young people into his office to learn about how to “de-escalate” heated and violent confrontations.

“We will be holding a series of events in the next few days to further bring police, communities, young people together to talk about the de-escalation of violence,” he said. “This is unacceptable.”