Donald Trump issues nuclear threat to Iran after Islamic Republic declares 'total war'
'We'll knock the hell out of them,' the US President declared after Tehran vowed to land a 'decisive' blow on the West
'Fearless' triathlete dies in California after 'being dragged away by shark while swimming'
Eyewitnesses said they saw a shark holding a human body in its jaws before disappearing beneath the surface
One dead and another severely hurt after two helicopters crash into each other mid-air
Plumes of black smoke were seen rising over the small US town after the horror smash
