The number of confirmed and suspected suicides in the active-duty Marine Corps reached a 10-year high in 2018 with 57 cases, according to new Marine Corps data obtained by CNN.

Another 18 Marines in the Reserve forces either are confirmed to have committed suicide or their deaths are being investigated as suspected suicides.

Marine Corps sources say the service is concerned that 2018 may have seen 75 suicides even with the extensive mental health programs available. Many of the cases are young Marines who have not deployed overseas and have not been in combat — a situation that has been seen in other branches of the military as well.