BERLIN (AP) — Director Oliver Stone says he is worried about the health of actor Michael Douglas, who is battling throat cancer.

Stone told reporters in Berlin on Tuesday that Douglas is in a "precarious" state of health.

He said Douglas, who reprised his role as stock trader Gordon Gekko in Stone's latest film "Wall Street: Money Never Sleeps," was meant to accompany him on a promotion tour in Europe.

But Stone said Douglas is still "suffering" and remained in the US for further cancer treatments.

Douglas, who turned 66 on September 25, said in August he is battling throat cancer, but he attended the film's premiere in New York three weeks ago.

Stone's newest film is a sequel to the 1987 "Wall Street," for which Douglas won an Academy Award.

Douglas' representatives in Beverly Hills, California, could not immediately be reached for comment about Stone's remarks.