COLUMBIA, Md. (WJZ) — A man wearing a ski mask storms onto a Howard County school campus and attacks a student, and the whole thing is caught on tape.

Meghan McCorkell has more on the video that’s gone viral.

That video has now been viewed by more than half a million people.

Steps from the school’s front door, a masked man attacked a student as staffers rushed to break up the fight.

The shocking fight happened in seconds. A man in blue wearing a ski mask swung at a Long Reach High School student. In one punch, the 16-year-old football player knocked him out.

Students tell WJZ the fight wasn’t a surprise.

“People were just saying he was going to get in a fight with some guy. But nobody said it was going to be a parent,” said a student.

Police say the intruder came there to fight the football player who was allegedly picking on his 15-year-old relative. That girl was seen attacking the victim after the fight.

“Bullying is a really serious problem,” Ann Taubenheim, who lives near Long Reach High, said. “When a parent comes up with the same kind of inappropriate behavior, that doesn’t solve the issue.”

“You got to think of how you would feel is somebody came up to your kid and did that kind of thing,” Eric Bell, parent of a Long Reach High student, said.

Even school officials are in shock.

“Nobody is expecting to have a masked person show up on your campus and attack a student,” Patti Caplan, spokeswoman for Howard County Schools, said.

Students are surprised a masked man got on campus.

“If you came up like that to a kid, I’m pretty sure you might have gotten shot or tased,” student Tom Bell said.

As a precaution, police placed additional officers outside the school for Thursday’s dismissal.

“We just want to remind people that we want to do everything we can to make people there at the school feel safe, but we do feel this was an isolated incident,” Sherry Llewellyn, spokeswoman for the Howard County Police Department, said.

An isolated incident that is now spreading like wildfire on the web.

Police plan to file charges against the masked man. They’ve also filed assault charges against that 15-year-old girl for attacking the male student.

The 16-year-old football player is not expected to face disciplinary action since school officials believe he was just defending himself.