Your house is for sale and a theft occurs. Who is liable?

Your house is for sale through a reliable real estate agency. You expect your house to be sold soon, since many prospective buyers are viewing your home. During “showtime”, your house is in the hands of the real estate agent. You and your family are not there. You come back home to discover several articles of your property are missing…..stolen. Question: Who is liable for missing/stolen items from your home, when you have an agent that’s “showing” your open house?