By Kerrie Mitchell
Updated August 31, 2010 at 10:42 PM EDT

People is reporting that the Los Angeles County Department of Animal Care & Control is investigating an incident in which Samantha Ronson’s bulldog Cadillac reportedly killed a smaller dog near her West Hollywood home. Ronson tweeted yesterday: “I feel incredibly sad and wish I could offer more than condolences, unfortunately there are no words to describe how sorry I am.”