US telecoms giant Verizon Communications is to buy Yahoo's search and advertising operations for $5bn (£3.8bn), according to media reports.
The two firms were reported on Friday to be in exclusive talks over a possible deal.
US internet firm Yahoo announced in February that it was looking at "strategic alternatives" for its core internet business.
Verizon declined to comment on the reports.
A formal announcement is expected on Monday before US markets open for trading.
http://www.bbc.com/news/business-36879831
