Kiss guitarist Tommy Thayer is mourning the loss of his mother.

Patricia Thayer's death comes a few days after the rocker's father underwent surgery on Thursday (25Sep14).

A message on the band's Facebook.com page on Sunday (28Sep14) read: "We offer our condolences and deepest sympathies to Tommy on his mother's passing. Our thoughts and prayers are with you. Paul, Eric and Gene."

On Friday (26Sep14), Thayer updated fans on his father's condition, writing, "My dad's surgery went very well yesterday, no complications. The docs are keeping a close eye on him, everything is very positive."