SurveyMonkey CEO 'died after hitting head on treadmill at holiday resort'

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.

Efforts to revive Mr Goldberg, 47, the husband of Facebook executive Sheryl Sandberg, were unsuccessful. He was on holiday with family and friends when the tragedy happened.