A leading expert in adolescent psychology has said there is no scientific evidence to show excess use of smartphones and other gadgets is damaging to teenagers’ mental health.

Rescue crews searching for a classic American schooner carrying seven people now believe the vessel sank between New Zealand and Australia, although they have not given up hope of finding survivors.

The best friend of Anne Darwin spoke today of how she was betrayed by the wife of the back-from-the-dead canoeist.