The home of pregnant reality star Kourtney Kardashian was burglarized over the weekend, PEOPLE Magazine confirmed on Sunday.

The socialite called police on Saturday after discovering her Calabasas townhouse had been broken into and ransacked while she was out dining with her boyfriend. The Los Angeles County Sheriff tells the celebrity weekly that approximately $80,000 worth of jewelry was taken from the home.

Kourtney, 30, is expecting her first child — a son — with boyfriend Scott Disick this December.

Among the missing items are a Cartier watch, several diamonds, Disick’s Rolex timepiece, as well vintage jewelry left to Kourtney by her late father Robert.

“That’s what was discovered missing in the initial investigation,” said Sgt. Criner. “Sheriff’s investigators and our crime lab are responding on the scene.”

Kourtney’s burglary is the latest to strike young celebrities in the last year — the Hollywood homes of Lindsay Lohan and Audrina Patridge were robbed in recent months as well.