The Justice Department is suing to block UnitedHealth Group's $3.3 billion purchase of Amedisys, citing concerns the combination would hinder access to home health and hospice services in the U.S. The antitrust complaint,

Minnesota-based UnitedHealth Group Inc. is the focus of an antitrust lawsuit filed on Tuesday by the United States Department of Justice.

Four states and the Justice Department argued against consolidation of two leading health care companies, citing patient care affordability and nursing employment competition.