A deadlock over EU sanctions has deepened due to a complication. Luxembourg is seeking equal treatment in the delisting of oligarchs. The country's stance is based on the idea that if one member state is able to get an oligarch delisted, others should have the same opportunity.

This has raised concerns about a potential domino effect among member states. The situation involves France and its efforts to get a particular oligarch delisted. Luxembourg's insistence on equal treatment is at the center of the issue.

Further details on the deadlock and its implications are available from the source, providing more insight into the complex situation and the concerns it has raised among member states.