Val Kilmer’s official cause of death has been revealed. Over a week since his family confirmed the actor’s death at age 65 on April 1, Kilmer's official cause of death has been ruled as pneumonia according to a death certificate obtained by TMZ and reviewed by PEOPLE.

Actor Val Kilmer died from pneumonia with several underlying causes, his death certificate revealed. TMZ obtained a copy of the document on Thursday. The certificate listed pneumonia to be the immediate cause,

Val Kilmer died from pneumonia, the Los Angeles Department of Public Health has confirmed. The veteran actor died April 1 in L.A. at age 65.