The Kardashians are on strike, a US source has claimed today.

TMZ reports that sisters Kim, Khloe and Kourtney are refusing to film for the new season of their reality show Keeping Up With The Kardashians, after a spate of thefts.

[related]According to the site, $4,000 has been taken from Kourtney’s Hamptons holiday pad, as well as $50,000 from her Calabasas home and $250,000 in jewellery from Khloe’s house.

Apparently there’s no sign of forced entry, and insiders say the girls are now convinced someone who works on the show is the culprit.

Hiring more security and installing surveillance cameras has reportedly failed to catch the thief - and now Kim, Khloe and Kourtney want everyone to take lie detector tests.

Season 10 of KUWTK is due to start filming in October - but it seems the girls won’t be playing ball until the criminal is unmasked.