Details Emerge on Natasha Richardson's Accident
03/17/2009 AT 01:25 PM EDT
"She was laughing and joking and she walked to her room on her own," Mont Tremblant spokesperson Catherine Lacasse says.
The British-born Richardson, 45, was not wearing a ski helmet when she was taking a private ski lesson on the Nansen, a beginners' run at Mont Tremblant. When she was near the bottom of the run in a section known as the flats, she fell down. According to the spokeswoman, Richardson did not hit anyone or anything before coming to a stop.
"She was accompanied by an experienced ski instructor who immediately called the ski patrol," according to a statement from the resort.
Lacasse tells PEOPLE that there were no cuts, bleeding or other external signs of injury. Ski patrollers assisted Richardson and helped her to her room. She was not put on a stretcher.
About an hour after the fall, Richardson started complaining of headaches. She went to a nearby hospital and was later transferred to the Intensive Care Unit of Sacré Coeur Hospital. (A spokesperson for the hospital would not confirm or deny that Richardson was a patient there.)
According to AccessHollywoood.com, her husband, actor Liam Neeson, 56, was filming the movie Chloe in Toronto when he got the news and rushed to be by Richardson's side.
Richardson, who appeared in The Parent Trap, Maid in Manhattan and Nell has been married to Neeson since 1994. They have two sons, Micheal Richard Antonio, 13, and Daniel Jack, 12.