Perry Hall High Shooter Cooperating With Police

UPDATED (10:03 p.m.)—A 15-year-old boy is said to be cooperating with police as they investigate his alleged involvement in a .

Police continue to interview the unidentified teen and the investigation at the high school is expected to continue into Monday night, according to a statement released by Elise Armacost, a police spokeswoman.

No charges were expected to be filed. The unidentified victim remains in critical condition at Shock Trauma. Police have declined to identify either the shooter or the victim citing an ongoing investigation, according to a statement released by police late Monday.

The teen is expected to be charged in the morning shooting that sent one 17-year-old teen to Shock Trauma where a spokeswoman said he is in critical condition.

At least two members of the high school to the ground and held him for police. No charges have been filed.

"Police are working with the state's attorney to determine what charges will be placed and whether the 15-year-old suspect will be charged as a juvenile or an adult," Armocost said in the statement.

Students are at tomorrow.

"Though police believe the suspect acted alone, police plan to enhance their presence at the school tomorrow," Armacost said in her statement. "The police department's critical incident stress debriefing team has been activated to provide support for students and faculty."

Police are also not commenting on reports of statements the alleged shooter may or may not have made on various social media websites.

County police Chief Jim Johnson is expected to update information on the investigation tomorrow following a graduation ceremony for police recruits in Dundalk.