March 20 at 8:38 AM
Authorities in St. Mary’s County, Md., said they are investigating a shooting at a high school but had few details on any injuries or the status of the person who fired shots.

Cpl. Julie Yingling, a spokeswoman for the St. Mary’s County Sheriff’s Office, said at 8:15 a.m. that officials “have a shooting at Great Mills High School.”

“It is fluid,” she said of the situation.

On its web site, St. Mary’s County Public Schools wrote, “There has been a shooting at Great Mills High School.” They also said “the school is on lock down and the event is contained.”

When asked if anyone was hurt or if anyone was in custody, Yingling said, “we have no idea at this point.”

This story will be updated.