Uber Technologies has filed a lawsuit against DoorDash, accusing the online delivery firm of anticompetitive practices, leading to higher costs for both restaurants and customers.

Uber says DoorDash is forcing restaurants to accept it as an exclusive partner for first-party deliveries or risk being demoted or removed from the app, hampering Uber Eats' potential growth.

Uber claims that if a DoorDash merchant wants to work with Uber Eats for first-party delivery, DoorDash threatens higher fees or lower placement on its app.

Uber has initiated legal proceedings against DoorDash, claiming that the leading food delivery service in the U.S. employs tactics that stifle competition. The lawsuit, filed in the Superior Court of California,