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Paris Hilton spent her birthday in hospital with her boyfriend after he was injured in a terrifying skiing accident.

Model River Viiperi suffered a severe wound to his left leg after taking a serious tumble on the slopes in Lake Tahoe, California.

He was taken to a local hospital for treatment and Paris, who turned 31, stayed by his side.

She told Twitter followers: "Such a scary day on the slopes today. After seeing the gash on River Viiperi's leg, I almost passed out. I have never seen a cut that deep in my life.

"He is so brave, I can't even imagine the pain he went through today... After an eventful birthday weekend in Lake Tahoe... Taking off back to LA."

River later thanked his girlfriend for her support, tweeting: "Back in Lalaland (L.A.) safe & sound thanks to my gorgeous blondie Paris Hilton always taking such good care of me. Love U ... Thank u tweeps 4 the kind words! 12 days W/ (with) stitches then back 2 'almost normal' this sucks but could have been worse. Thankful. Goodnight."

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