Insider sources have revealed that Beverly Hills housewife Kim Richard was forced into rehab by her sister, Kyle Richards.
Apparently Kim and her sister had an explosive fight on set where they came to blows, and she checked into rehab shortly after.
According to the source, "Kim's drinking had become so out of control that the other women on the show had to cover for her."
Yikes! We hope she gets better!
[Image via Patricia Schlein/ WENN.com.]