Sabrina Colon, 12, was in her seventh-grade math class when she heard a muffled bang from the class next door.
Two 15-year-old students in Los Angeles were shot and wounded in class Thursday, in the latest school shooting to hit the United States, reigniting the long-running debate over gun control.
Authorities said it was not clear how the 12-year-old got access to a firearm.
He said that she kept sobbing and repeating: "'I didn't mean it".
"We're unclear whether a gun went off or if it was an intentional shooting", he said.
In an 11 a.m. press conference, Zipperman said the school day would continue despite the classroom shooting.
The girl was struck in the right wrist, hospital officials said.
A KTLA helicopter caught a glimpse of the girl, who was handcuffed as two police officers escorted her off school property. "However, at this time, the information suggest that this was an isolated incident, involving the negligent discharge of a firearm, where innocent children and a staff member were unfortunately injured".
The girl, who is not being identified because she is a minor, was detained in connection with the shooting as police probed how the gun was obtained and why it got on campus.
Five people were injured in the shooting.
The second gunshot victim was a 15-year-old girl who was shot in the wrist and was in stable condition, Scott said.
Despite one of the victims being shot in the head, Strumwasser, trauma surgeon for Keck Hospital, said the boy and the rest of the victims were expected to fully recover. "I think he will do fine ..." I anticipate that he will make a full recovery. And a 15-year-old boy was charged with opening fire at a Kentucky high school, killing two students and wounding 18 other people.
A 30-year-old woman was treated for unspecified minor injuries, the Los Angeles Fire Department reported.
No suspects are outstanding and the Salvador B. Castro Middle School has been declared safe, the Los Angeles Police Department said.
"It was really close to her", Lopez said.
"I fear for my son's life", Anzueto says. Jordan said he noticed his friend sitting at her desk with her hands covering her face.
"Mom I'm scared", the first one said. He says the girl "doesn't do bad things, she just stays quiet".
Dozens of parents anxiously waited for hours to be reunited with their kids after the Thursday morning shooting. LAUSD interim Superintendent Vivian Ekchian assured parents there was no remaining danger on the campus, but the shooting "will be carefully investigated".
"Our campus, while it's on lockdown, is safe".
"We know this a very traumatic incident for all the children involved, particularly inside that classroom", said Steven Zipperman, chief of the Los Angeles school system police department.
Zipperman declined to provide specifics about security measures at the campus, but said every secondary school in the district had "policies and procedures" in place to protect students.
Police recovered a semi-automatic handgun after the shooting. It could result in a tragedy.