Chief operating officer Sheryl Sandberg, who was speaking at the firm's Facebook Gather conference in Croke Park, said the hires would be focused on policy and content moderation, as well as marketing, legal and sales.

Facebook's Sheryl Sandberg has apologised to Norwegian Prime Minister Erna Solberg for deleting a photograph from its pages and conceded that "we don't always get it right".

Facebook chief operating officer Sheryl Sandberg has paid a moving tribute to her husband of 11 years Dave Goldberg, after his tragic death while on holiday with her in Mexico.

SurveyMonkey chief executive David Goldberg suffered a massive, fatal head injury while exercising at a gym in a Mexican resort, a person close to his family has said.

Dave Goldberg, head of survey company SurveyMonkey and husband of Facebook chief operating officer Sheryl Sandberg, has died aged 47.