TV presenter June Sarpong has paid tribute to her brother Sam following his shock death, saying his passing "is a loss for the world".
Sam, a model, died after jumping off a bridge in the US.
In a statement to the Press Association, the TV presenter said: "I love my brother very much. Sam was an amazing human being. His passing is a loss for the world.
"I'd ask anyone who is going through tough times to seek help. Please talk to someone."
She went on to say: "My family and I are in a state of shock, please allow us to grieve in private. Thank you for all your messages of condolence."
The 40-year-old model, who was born in London and lived in Pasadena, California, died on Monday after officers spent seven hours trying to talk him down, local police said.
The case is being investigated as a possible suicide, Los Angeles County coroner's office said, but added that the official cause of death will not be known until the results of toxicology results come through.
He had modelled for Tommy Hilfiger and acted in television series Bones.
Earlier this year he posted a picture of himself with his sister, a panellist on ITV's Loose Women who recently appeared as part of the campaign to keep Britain in the EU, which he captioned: "with my #Supastar sis June".