Yahoo CEO Marissa Mayer gives birth to twins

FILE - In this Wednesday, Jan. 22, 2014, file photo, Yahoo CEO Marissa Mayer smiles during a session at the World Economic Forum in Davos, Switzerland. 

Yahoo CEO Marissa Mayer announced via Twitter that she gave birth to identical twin girls on Thursday.

Mayer and her husband Zack Bogue also have a 3-year old son named Macallister. 

Mayer previously said that she planned to take limited time away and work throughout her pregnancy, similar to the approach she took when her son.

This week, Yahoo announced it would be spinning off its internet business.