Union Pacific is in talks to merge with Norfolk Southern, according to The Wall Street Journal, in a deal that would shake up the railroad business in America.The Journal cited people familiar with the matter.

NSC merger would significantly expand Union Pacific's rail network, potentially challenging the dominance of BNSF Railway, which Berkshire Hathaway acquired in

Union Pacific and Norfolk Southern are in merger talks to create the largest railroad in North America that would connect the East and West Coasts.