UPDATE: Officials: Shooter dead after shooting at a St. Mary’s Co. high school

The St. Mary's  County Sheriff's Office says the shooter at a county high school has died following an incident on Tuesday morning.

Authorities say the shooter involved in the school shooting at Great Mills High School has died after after a school resource officer fired at him.

Sheriff Tim Cameron reports that a female and a male student were injured in the hallway during Tuesday's shooting.

This incident remains under investigation.
 

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Officials report that three people were injured in a school shooting at a St. Mary's County high school, on Tuesday morning. 

As of 10:15 AM, St. Mary's County authorities report that three people have been injured in the school shooting at Great Mills High School, in Great Mills.

St. Mary's County Sheriff's spokeswoman Cpl. Julie Yingling says there have been no fatalities in the Tuesday morning incident. According to the Associated Press, Yingling reports that two victims were shot, but it is not known if the shooter was injured. 

All three victims were apparently taken to hospitals for their injuries.

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(AP) – School officials report that there's been a shooting at a Maryland high school, that the 'event is contained' and the campus is on lockdown.

Federal agents from the bureau of Alcohol, Tobacco and Firearms are going to the scene, their agency tweeted.

The St. Mary's County Public Schools said on its website early Tuesday that there was a shooting at Great Mills High School, located in the southern end of the state.

The county sheriff said deputies are on the scene, and that parents or guardians should stay away, going instead to Leonardtown High School to reunite with Great Mills students there.

Maryland Gov. Larry Hogan and Rep. Steny Hoyer tweeted that they're monitoring reports and urged people to follow the instructions of local law enforcement at the scene.