LOS ANGELES — Robin Williams was in the early stages of Parkinson’s disease at the time of his death, his wife said Thursday.

In a statement, Susan Schneider said that Williams, 63, was struggling with depression, anxiety and the Parkinson’s diagnosis when he died Monday in his Northern California home. Authorities said he committed suicide.

“Robin’s sobriety was intact and he was brave as he struggled with his own battles of depression, anxiety as well as early stages of Parkinson’s disease, which he was not yet ready to share publicly,” Schneider said.

Schneider did not offer details on when the actor comedian had been diagnosed or his symptoms.