record as he crosses the line. sir mo's time of 2 hours, 6 minutes and 21 seconds is a new british record. this year's race was started by the queen. 41,000 runners are thought to have taken part in the 26—mile race. verne troyer, who is best known for playing mini—me in the austin powers films, has died at the age of 49. good afternoon and welcome to bbc news. the health secretary, jeremy hunt, is threatening social media companies with new legislation unless they voluntarily come forward with safeguards to protect children's mental health. he's written to platforms such as facebook and google accusing them of "turning a blind eye" to the problems arising from social media use. our business correspondent, joe lynam reports. it is the new worry