Yelp sued Google on Wednesday in a San Francisco federal court for allegedly engaging in anticompetitive practices and “abusing” its monopoly to “dominate” local search and advertising markets.

The complaint, filed in the U.S. District Court for the Northern District of California by Hausfeld attorneys Sathya Gosselin and Swathi Bojedla, accuses the Big Tech giant of violating Section 2 of the Sherman Act and California’s Unfair Competition Law by exploiting its position as “the largest information gatekeeper in existence” to “steer users to its own inferior content to pad its massive revenues.”