The sisters are reportedly refusing to film until they determine the person or persons who robbed them this year. $50,000 in cash was stolen from Kourtney's house in February, $250,000 worth of jewelry went missing from Khloe's home in March and another $4,000 in cash was taken from Kourtney's rental in the Hamptons in July.
Sources close to the family tell TMZ the sisters are convinced the thief works for their reality show, and want the crew to take lie detector tests. All of the thefts appear to be inside jobs, with no signs of forced entry and no other items missing. The Kardashians have hired additional security, installed more security cameras and started to rotate staff, but the incidents continue.
Filming on season ten is due to begin in October. Season nine of Keeping Up with the Kardashians airs Sundays on E!.