Heiress Paris Hilton has been released from jail in Los Angeles after serving approximately half of her 45-day sentence for violating her probation in a drink-driving case.

The 26-year-old smiled broadly as she walked by herself past photographers and camera operators.

She made no comment before joining her parents in their car.

Hilton is due to give her first post-jail interview to CNN's Larry King on his 'Larry King Live' show tomorrow night.