Towers Watson Delaware is suing Morgan, Lewis & Bockius for more than $30 million, based on its claims that the firm knowingly helped another client, Meriter Health Services, sue Towers.

The complaint, filed last week, claims Morgan Lewis’ alleged conflict of interest in representing Towers was “just the tip of the iceberg.” Towers said Morgan Lewis used its representation of Towers to assist another law firm, referred to in the complaint as “Law Firm 2,” in developing Meriter’s lawsuit.