Robin Williams has offered his support to close friend DANA REEVE after discovering she is battling lung cancer.

Williams, a close pal of Reeve's late husband, SUPERMAN star Christopher Reeve, issued a statement just hours after the news went public.

Signed by Williams and his wife MARSH, it reads, "Love and support to Dana and her family during this challenging time.

"We hope their need for privacy is respected so Dana can focus on her healing."