A Lake Forest High School student was struck and killed by a Metra train last weekend, the third student from the north-suburban school to be killed by a Metra train since January.

Lake Forest Deputy Police Chief Glenn Burmeister said Monday that all three student deaths were intentional. The three cases have very little in common, though all of them were male and attended the same high school. The male discovered Sunday was 18 years old, and a senior in high school.

Lake Forest High School Principal Jay Hoffmann released a statement to parents about the incident, writing “It is with indescribable sorrow that I am writing once again to inform you of the loss of one of our students.” The student, he said, was “talented and bright” and “will be missed.” Hoffman encouraged students to talk to outside organizations for support, as the high school is currently on spring break.

The two other boys were hit by Metra trains in January and March. Both were 15 years old.

Data from the Lake County Health department show there were 67 suicides in 2010, a 10 percent increase from 2009. The department established a suicide prevention task force in January.

Deputy Chief Burmeister, a member of the task force, said meetings are held monthly to look at the larger aspect of suicides in the community and how to deal with and help prevent them.