Facebook CEO Mark Zuckerberg Photo: REUTERS/Stephen Lam/Files

Social networking front-runner Facebook has announced that their Head of Communications and Public Policy, Elliot Schrage, is stepping down after a decade.

Schrage led the firm’s response to scandals about privacy and election meddling.

He will stay on as an adviser to Facebook while his successor is chosen, and will later assist with special projects, the company said in a statement.

Schrage is at least the third high-level executive set to leave Facebook this year, upending a period of relative stability in the company’s management.

Jan Koum, Co-founder and Chief Executive of the Facebook-owned messaging service WhatsApp, announced his resignation in April, and Chief Security Officer, Alex Stamos, is expected to leave in August.

Facebook has faced a barrage of criticism from users and lawmakers after it said last year that Russian agents used Facebook to spread disinformation before and after the 2016 U.S. presidential election, an accusation Moscow denied.