UPDATED | May 2, 2017 2:00 PM

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FORT WORTH (CBSDFW.COM) – Fort Worth Police say an 18-year-old student at Brewer High School stabbed a 16-year-old student in the throat Tuesday afternoon.

Police said the suspect is in custody and charged with aggravated assault.

The victim was rushed to the hospital in serious condition.

White Settlement ISD says the pair was involved in an incident during lunch.

“The students’ parents were contacted and school administration and local law enforcement investigated the situation,” said Desiree Coyle, White Settlement ISD Communications Director.

The campus was under perimeter lockdown temporarily, and students remained in their classrooms during the investigation.

Students will be dismissed at regular times.

Counselors are available for students who witnessed the incident.

Brewer High School (CBS11)