The U.S. Justice Department has sued to block tech giant HPE from acquiring Juniper Networks, the networking firm, citing antitrust concerns.

U.S. government regulators sued to block Hewlett Packard Enterprise’s $14 billion acquisition of rival Juniper Networks on Thursday, saying the combination would eliminate competition, raise prices and reduce innovation.

The US Justice Department sued to block Hewlett Packard Enterprise Co.’s $14 billion acquisition of Juniper Networks Inc., arguing the tie-up would harm competition in the market for enterprise wireless equipment used by large companies,