Reports of a fight between Sherpa guides and three climbers on Mount Everest are being investigated.
Anish Gupta of Cho-Oyu Trekking, the Kathmandu-based company that organised the expedition said: "We were told our clients and the guides fought on their way to camp three. We don't have all the details yet, but our clients have come down off the peak."
He added that one of the clients, a Swiss national, had descended the mountain and was currently waiting for a flight back to Kathmandu.
More top news
Conservationists say one of the UK's most threatened butterflies has recorded its best year for a decade following 2014's warm spring.
The SNP leader Nicola Sturgeon says tonight's TV election debate shows there is a clear demand for a new style of politics across the UK.
A drug addict whose sickening attack on a disabled pensioner caused outrage around the world will be sentenced later.