Union Pacific , the largest U.S. railroad operator, could reach an agreement to acquire rival Norfolk Southern as soon as early next week, Bloomberg News reported on Friday, citing people familiar with the matter.

Railroad operator Union Pacific is holding talks to acquire its smaller rival Norfolk Southern in what would be a megamerger in the railroad industry, according to people familiar with the matter.

Union Pacific, the largest U.S. freight railroad operator, is exploring a possible acquisition of Norfolk Southern to create a $200 billion coast-to-coast rail network, a person familiar with the matter said.