An 18-year-old student was killed and another student arrested following a shooting Wednesday afternoon at Bowie High School in Arlington.

Arlington Police Chief Al Jones and Arlington Independent School District Superintendent Matt Smith held a news conference Wednesday evening to provide an update on the shooting, which was confirmed to be a homicide.

According to authorities, officers responded to the high school just before 3 p.m. after reports of shots being fired near a portable building on campus. School resource officers said once they arrived at the scene, they found the 18-year-old lying on the ground.

First responders said he had been shot up to six times and was unresponsive.

As a result of the shooting, the campus was forced into lockdown. Video obtained by NBC Dallas-Fort Worth showed police officers providing CPR to a person on the ground outside the school.

The victim, whose name has not been released, was taken to a hospital, where he was later pronounced dead.