The European Commission has ordered Meta to “bring the conduct effectively to an end,” but didn’t specify what actions should be taken. Meta was also hit with a record-breaking $1.3 billion fine by the EU last year for transferring the Facebook data of EU citizens to the US.

European enforcers accuse the tech giant of using its popular social network to unfairly advantage its classified ads business.

The executive arm of the European Union isn’t shying away from slapping major tech companies with hefty fines. The European Commission has fined Meta €797.12 million ($842 million) for violating antitrust regulations.

The European Union says the tech giant crowded out rivals, breaching competition law.

Meta was penalized by the EU for tying Facebook Marketplace to its social network, and for imposing unfair trading conditions on competitors.