Kendall, 20, Kylie, 19, and Khloe, 30, have decided to call off some upcoming signings due to security issues as all three siblings are scared after their 35-year-old model-sister was robbed at the gunpoint in the French capital, reported Femalefirst.
"Due to recent events and ongoing security issues, all signings have been cancelled," a source said.
The news came after it was revealed that shooting of their real life-based TV show "Keeping Up With the Kardashians" has been put on hold.