By Eric Levenson, CNN
(CNN) — In Orlando, around 1,000 teenagers showed up to the Icon Park area on a Saturday night last month, spurring fights and a substantial police response that led to nine arrests on charges including battery on an officer, resisting arrest and trespassing.
In Washington, DC, a group of about 200 teens gathered at a park in the Navy Yard neighborhood this spring, leading to gunfire, disorderly conduct and robbery.
And in New York, hundreds of teens flooded a mall in the Bronx in February, trashing stores and berating mall employees.
The incidents are just a few examples of what’s become known as “teen takeovers,” the term for a mass gathering of rowdy youngsters in a public space like a mall or park. Spread by social media flyers or mass messages beforehand, the takeovers have on occasion spiraled into chaos, with reports of fights, robberies, gunshots and general disruption.
The takeovers seen in Orlando, Washington, New York, and across the US show how social media has supercharged these gatherings into something more significant.
“It’s a new form, but it’s not a new substance,” said Thaddeus Johnson, a senior fellow at the Council on Criminal Justice think tank, comparing teen takeovers to the flash mobs of a decade ago. “What’s new is the scale and how these things are networked.”
Of course, large gatherings of teens have long caused consternation and fear among the olds. In general, juvenile crimes are more often committed with others, and images of roaming throngs of teens has an outsized presence in media and in the public’s amygdala.
The ultimate fear is something like what happened in Oklahoma last weekend, when a “Sunday Funday” party promoted on social media drew young revelers to a lakeside picnic pavilion outside Oklahoma City. There, an argument among attendees escalated into a shootout between rival gang members, leaving one person dead and more than 20 wounded, according to police.
With summer on the horizon – when school is out and crime typically increases – police and officials have taken steps to crack down on large gatherings of teens.
Some police departments have begun scouring social media for teen takeover plans and are treating these events more like civil unrest.
“Once we see these large gatherings, we put eyes on them and officers on them,” DC Metro Police Assistant Chief Ramey Kyle told the Police Executive Research Forum, a national police research and policy organization.
“If the kids try to break off a little bit, we try to have an officer within sight of them. When we do that, we have a lot fewer fights, robberies, and shootings.”
Teen takeovers around the country
DC officials have taken several notable steps in their crackdown, including an April public emergency declaration after “several weeks of disorderly behavior.”
The DC Council approved a measure this week giving police