New details emerged Friday about what happened after an altercation prompted a lockdown at Norcross High School.

About 10:30 a.m. Thursday, two teenagers were involved in a fight, possibly involving a gun, in a wooded area next to the school, Norcross police Capt. Bill Grogan said. One of the suspects, an unidentified 15-year-old boy who was not a Norcross High student, ran from the wooded area to the school, according to a Gwinnett County Schools Police report released Friday.

Norcross High was placed on lockdown while authorities conducted a room by room search for the 15-year-old suspect, who was ultimately found in a classroom and detained without incident, police said. A school resource officer took the boy to the Rockdale Regional Youth Detention Center.

The second suspect, a 16-year-old former Norcross High student, also entered the school, and was bleeding profusely from apparent injuries to his face, according to the report.

“He was somewhat incoherent and stated he had been assaulted in the wooded area,” police said. “He also appeared to be under the influence of some kind of drug or intoxicant. He became very belligerent and had to be restrained in handcuffs.”

Emergency officials were called, and the second suspect was taken to Gwinnett Medical Center in Lawrenceville.

No weapons were located in the school building or on school grounds, but the investigation is ongoing, according to the report.

The lockdown ended soon after 1 p.m., and the school allowed parents who decided to do so take their children home. After-school activities continued as normal.

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