Natasha Richardson‘s husband Liam Neeson and their sons are at her bedside in hospital after she suffered a serious head injury in a skiing accident.

The 45-year-old star is being treated at Lenox Hill Hospital in New York following the accident at the Mont Tremblant resort in Quebec, Canada.

The actress was flown back to the US from Canada for further treatment, and although there has been no official word on her condition, some reports have suggested she could have serious brain injuries.

Her two sons and Irish actor husband Liam were photographed leaving the hospital in New York early this morning. Her mother, Oscar-winning actress Vanessa Redgrave, was also seen entering the hospital on Tuesday night.

The accident happened while Natasha was taking a supervised lesson on a beginners run, the Mont Tremblant resort said.

After the fall, the instructor called the ski patrol for assistance. A spokeswoman for the resort said: “[Natasha Richardson] did not show any visible sign of injury, but the ski patrol followed strict procedures and brought her back to the bottom of the slope and insisted she should see a doctor.”

Both the instructor and the patrol accompanied the actress to her hotel and again urged her to see a doctor.

“Approximately an hour after the incident, Mrs Richardson was not feeling good. An ambulance was called and Mrs Richardson was brought to the Centre Hospitalier Laurentien in Ste-Agathe and was later transferred to Sacre-Coeur Hospital,” the resort said.

Neeson flew from Toronto, where he is filming a movie, Chloe.

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