KATIE Price has stormed out of rehab after less than 24 hours.

The former glamour girl, 40, was admitted to a residential facility yesterday evening but she's already walked out.

Katie was admitted to the clinic around 6pm yesterday to begin a 28-day stint for PTSD and cocaine abuse days after her arrest on suspicion of drink driving.

However, The Sun can exclusively reveal she was out of the door this afternoon after less than 24 hours.

Her on/off boyfriend Kris Boyson, 29, was there to pick her up and take her home.

A source told us: "Katie walked out at 4 o'clock this afternoon and she was picked up by Kris.

"Her friends are really worried about her as this was her last chance."

Last month, she started a month-long outpatient rehab stint shortly after The Sun's exclusive pictures showed her rapping about cocaine during a wild holiday in Spain.

But this week she decided to check into a clinic to begin a residential treatment program following her arrest on suspicion of drink-driving.

She had been due to stay at the clinic full-time rather than previously coming and going for sessions.

Katie was dumped by toy boy Alex Adderson, 25, on Monday night and hit the bottle on an all-day bender after leaving his home at 6.30am on Tuesday morning.

She was arrested on suspicion of drink-driving having crashed her pink Range Rover in the early hours of Wednesday morning.

Katie was nicked by cops after her £75k car was found in a bush in Woolwich, South East London, at around 2am.

The star was forced to spend the night in a police cell and asked to take a breath test.

Katie had been partying at Kris' 30th birthday bash at The Meze restaurant in Bexleyheath in the hours before her arrest.

An eye-witness said she had rowed with current boyfriend Alex, 25, and was seeking comfort from Kris before leaving the venue.

Kris was there for Katie during the drama and was pictured with her as finally left the police station.

We later revealed the former couple are giving their romance another go.

The Sun has contacted a representative for Katie for comment.