Beware the mean girls.

Police have ramped up patrols at the Staten Island Mall following a series of five vicious attacks on young women by a pack of attention-hungry teenage girls, police and a victim’s family said Tuesday.

A crew of 12- and 13-year-old girls unleashed three separate beatdowns in the mall between 7:30 p.m. and 10:15 p.m. on June 21. And a slightly older group of trouble-making teenage girls attacked two 14-year-old women at the shopping center around 9 p.m. June 26, according to police.

Three marked cop cars were seen parked at the shopping center Tuesday.

“These gangs are out there,” warned the father of one 14-year-old victim, from the June 26 incident who asked not to be named.

“They pulled my daughter’s hair and held her on the ground while other girls beat her and kicked her,” he said of the thrashing.

The girls videotaped their sick attack to post on social media after accusing their victim of talking “sh-t” on Snap Chat, the dad said.

“It’s like the ‘Hunger Games,’ [they] try to give as many beatings as they can, then them post them to Snap Chat,” he said.

His daughter was left bloody and bruised, while her friend suffered a concussion, the family said.

“They stalked [her] through the mall and then surrounded [her], they were like al-Qaeda — very organized and everyone has a job. One girl distracted my daughter, got in her face,” he said, adding there were six attackers.

A 12-year-old girl was arrested Tuesday and charged with assault, according to police, who confirmed they are beefing up mall patrols.

Her identity was not released because she is a minor.

Some teenage shoppers said the added security did little to put their minds at ease because many of the attackers remain at-large.

“There’s lots of talk, everyone is talking about what happened at the mall,” said one 16-year-old girl.

“It’s not safe. Even if they add more security guards, it still wouldn’t be safe because [not all of the attackers] have been caught yet.”

None of the girls are believed to belong to a gang, according to police, who confirmed that the group videotaped several of the incidents.

Additional reporting by Natalie O’Neill