Dallas News has reported that Dallas-based Heritage Auctions has sued rival auction house Christie's for allegedly stealing data by scraping its website.

A copyright infringement suit was filed in federal court in Dallas on Friday. It claims that London-based Christie's and its independently operated subsidiary Collectrium unlawfully acquired about 3 million auction data listings from the Heritage website.

Heritage is seeking statutory damages of $150,000 for each copyright infringment.

Collectrium has built a database of 11 million auction data listings, according to documents in the suit. The collection management and data company was bought by Christie's last year.