Facebook founder Mark Zuckerberg has announced the departure of the firm's chief product officer Chris Cox and head of WhatsApp Chris Daniels, ONA reports citing BBC.
Mr Cox joined in 2005, a year after Facebook was founded, while Mr Daniels took up his role only a year ago.
No reason has explicitly been given for their departure.
The changes come shortly after Mr Zuckerberg outlined his plan to transform Facebook into a "privacy-focused platform."
This week the social media giant and its platforms WhatsApp and Instagram also experienced the worst outage in the company's history. Facebook later blamed the blackout on a "server configuration change".