Saudi Arabian Princess Rima bint Talal prays for tragic 'Sleeping Prince'

Princess Rima bint Talal has shared a video of her nephew Prince Al Waleed bin Khaled bin Talal, known as "The Sleeping Prince", who slipped into a coma more than 15 years ago.

The prince, who was admitted to hospital after a car accident in 2005, is the nephew of billionaire Saudi Arabian investor Prince Alwaleed bin Talal.

“My beloved, may God protect you, heal you, and restore you," Princess Rima wrote on Twitter.

The clip uploaded on Monday by Princess Rima, the sister of Prince Khaled bin Talal, shows Prince Al Waleed plugged into a life-support machine, covered with a Saudi flag with the words "Our Country is in Our Hearts".

His father, Prince Khaled, hopes his son will make a full recovery.

“Someone asked me, why don’t you unplug the devices from your son? I replied that if it was God’s will for him to die in the accident, then my son would be in his grave," Prince Khaled has said.

In October last year, their sister, Princess Noura bint Talal, tweeted a video of Prince Al Waleed moving his fingers.

"Dear son of the beloved Khalid bin Talal Al Waleed, praise be to Allah, who gives life to whom He wills by His command. Praise be to God, who restored you to your health, so do not despair with the power of God," she wrote on Twitter.