One of the British nationals feared missing after an avalanche swept through Mount Everest during the Nepal earthquake has been named as Sebastian Lovera, 22, from Tonbridge in Kent.
His last known location was Khumjung on Tuesday, where he was heading towards Everest Base Camp on a light aircraft.
His parents told ITV News:
Sebastian is an extremely lively and self-motivating person and that is why he went to Nepal.
We haven't heard from him. He would not have switched his phone off. We have tried ringing it. Sometimes it rings and sometimes we get an answer but it's an automated answer. It says the phone is switched off.
He's certainly not a person to take risks. He's the absolute opposite.
Mr Lovera is described as being around 5ft 8in (172cm) tall, with dark blond/light brown hair and is said to be in excellent health. He was last seen with his climbing partner heading towards Everest base camp.
Four men trapped under as much as 10 foot of rubble after the Nepal earthquake were rescued when NASA technology sensed their heartbeats.
One medical worker told ITV News it was like 'entering your worst nightmare' as they tried to help look after the injured.