However, state records examined by Local 2, the latest numbers available, show during the 2011-12 school year for the entire Spring Independent School District there were 15 incidents of gang related school violence. Five prohibited weapons were confiscated, along with 1,250 fights reported and 45 non-illegal knives found.

School under lockdown for hours as parents worry

The school was placed under lock down shortly after the stabbing was reported.

"We want to ensure parents that we're going to do all we can to deter unwanted activity and make sure that this doesn't happen again," Spring ISD Chief of Police Victor Mitchell said.

Spring ISD Superintendent Dr. Ralph Draper said during the news conference that the school first took care of security measures, then protected the integrity of the investigation before communicating with parents over what happened at the school.

Dr. Draper asked everyone to keep the families of the victims and the families of all the students at Spring ISD in their thoughts and prayers.

Students were expected to be released at 10 a.m. but that was delayed. Just after 1 p.m., students were released.

According to Spring ISD officials, Spring High School will be closed on Thursday and Friday. Students will report back to school on Monday. Friday night's football game has also been canceled.

Spring High School sent out the following email to parents at 10:03 a.m.:

"This is an important message from Spring High School.  Based on a preliminary report, a fight occurred this morning in the cafeteria. There has been one fatality and three students have been transported to hospitals with injuries.  All other students are safe in their classrooms and will remain there while the investigation continues.  Students will be released as soon as we have been given permission from the investigating authorities.  We will call you again as soon as we have more details."

Parents and other families lined up along Cypresswood Road waiting to be reunited with their kids. Just prior to the students being released, a group of parents gathered together, held hands and formed a prayer group.

One parent we interviewed live on Local 2 spoke with his son on the phone inside the school. The student told him he was safe and watching the news coverage on TV.

Another parent told Local 2, "I have two daughters here....My daughter had text me to let me know that the stabbing is going on. But I have yet to hear or get texts from anybody at Spring letting me know that this event took place."

The grandmother of a 12th grader and an 11th grader at the school was told by the students that the principal put them back inside the classroom.

"He said that a big fight broke out. And that's all he knows. A big fight broke out and several people got stabbed and cut," she told us.

"When we do re-open the school, we will have a high level of security on campus," said Dr. Draper.

Crisis counselors will be available to assist students and additional security will be on campus as needed.

A vigil is planned for Wednesday night at 7 p.m. at the Spring Baptist Church, located at 1027 Spring Cypress Road.

Officials are setting up a phone line for parents to call with questions for the school. It will be available from 10 a.m. to 2 p.m. on Thursday and Friday. The information phone number is (281) 891-6575.

Anyone with information about those involved with the stabbing, what weapons were used or where the weapons are should call the Harris County Sheriff's Office at 713-967-5810 or the Crime Stopper tip line at 713-222-TIPS.