The review is geared toward examining the practices of online platforms that dominate internet search, social media and retail services, including Facebook Inc, Alphabet Inc, Amazon.com Inc and Apple Inc, according to the report. (https://on.wsj.com/2SwQe9D)

The Justice Department, Facebook, Alphabet, Amazon and Apple did not immediately respond to requests for comment.

(Reporting by Munsif Vengattil in Bengaluru; Editing by Anil D'Silva)