Antitrust enforcers argue that the healthcare giant’s latest deal would illegally harm competition.

The Justice Department and three U.S. states filed a lawsuit on Tuesday to block UnitedHealth Group's $3.3 billion purchase of Amedisys Inc over concern the deal would harm competition in the market for home health services,

UnitedHealth Group's $3.3 billion acquisition of Amedisys, the largest M&A deal for a Minnesota company in 2023, is being targeted by antitrust regulators who say the merger would hurt competition in the home health care sector.