Jonathan Rhys Meyers was hospitalized after a suspected suicide attempt on Tuesday (June 28).
The Tudors star—who has been in rehab five times for alcohol problems—refused treatment by paramedics for more than 30 minutes, meaning they were forced to call police and he was eventually taken away by ambulance to a facility near his home in Maida Vale, north London.
A source said: "This is very sad. It was the opinion of those present that he tried to take his life."
Worried neighbors saw the 33-year-old actor—who was believed to have overdosed on unspecified pills—rushed to hospital.
One onlooker told The Sun newspaper: "I saw the ambulance arriving and was worried to death.
"Jonathan is a lovely guy. You see him all the time in the street. He says hello and is very pleasant. I hope he is fine."
The Velvet Goldmine actor was discharged from hospital yesterday (June 29) but would only answer "no comment" when questioned on whether he had tried to commit suicide.
A police spokesperson confirmed they had been asked to attend the incident.
An official said: "Officers were called by London Ambulance Service following reports of a man refusing treatment. The man was taken to hospital."